Carmustine

A cell-cycle phase nonspecific alkylating antineoplastic agent. It is used in the treatment of brain tumors and various other malignant neoplasms. (From Martindale, The Extra Pharmacopoeia, 30th ed, p462) This substance may reasonably be anticipated to be a carcinogen according to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985). (From Merck Index, 11th ed)

A member of the class of N-nitrosoureas that is 1,3-bis(2-chloroethyl)urea in which one of the nitrogens is substituted by a nitroso group.


Elevated hepatic transaminase

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Elevations of the levels of SGOT and SGPT in the serum. SGOT (serum glutamic oxaloacetic transaminase) and SGPT (serum glutamic pyruvic transaminase) are transaminases primarily found in the liver and heart and are released into the bloodstream as the result of liver or heart damage. SGOT and SGPT are used clinically mainly as markers of liver damage.


Nifedipine

A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure.


Abnormal left ventricular function

Inability of the left ventricle to perform its normal physiologic function. Failure is either due to an inability to contract the left ventricle or the inability to relax completely and fill with blood during diastole.


uterine corpus leiomyoma

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A benign smooth muscle neoplasm arising from the body of the uterus. It is characterized by the presence of spindle cells with cigar-shaped nuclei, interlacing fascicles, and a whorled pattern.


impaired renal function disease

Any disease in which the causes of the disease is a perturbation of the kidney leading to its dysfunction.


liver cancer

An epithelial or non-epithelial malignant neoplasm that arises from the liver. Representative examples include hepatocellular carcinoma, intrahepatic cholangiocarcinoma, lymphoma, and sarcoma.


Norepinephrine

Precursor of epinephrine that is secreted by the ADRENAL MEDULLA and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers, and of the diffuse projection system in the brain that arises from the LOCUS CERULEUS. It is also found in plants and is used pharmacologically as a sympathomimetic.

The R-enantiomer of noradrenaline.


Rocky mountain spotted fever

Rocky Mountain spotted fever refers to an infection caused by the bacterium Rickettsia rickettsia. This particular bacterium is carried by certain species of ticks and spread to humans through the bites of infected ticks. Signs and symptoms of the condition generally develop approximately 2 to 14 days following the tick bite and may include fever, rash, headache, muscle pain, chills, and/or confusion. Some affected people may also experience diarrhea, nausea, vomiting, light sensitivity, hallucinations, and/or excessive thirst. Most cases occur in the spring and summer and are found in children. Risk factors for developing the conditioninclude recent hiking or exposure to ticks in an area where the disease is known to occur. Rocky Mountain spotted fever is typically treated with antibiotics (such as doxycycline or tetracycline).


Eplerenone

A spironolactone derivative and selective ALDOSTERONE RECEPTOR antagonist that is used in the management of HYPERTENSION and CONGESTIVE HEART FAILURE, post-MYOCARDIAL INFARCTION.


Hydromorphone

An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of action than morphine.

A  morphinane alkaloid that is a hydrogenated ketone derivative of morphine. A semi-synthetic drug, it is a centrally acting pain medication of the opioid class.


adrenocortical insufficiency

An endocrine or hormonal disorder that occurs when the adrenal cortex does not produce enough of the hormone cortisol and in some cases, the hormone aldosterone. It may be due to a disorder of the adrenal cortex (Addison's disease or primary adrenal insufficiency) or to inadequate secretion of ACTH by the pituitary gland (secondary adrenal insufficiency).


Erlotinib

A quinazoline derivative and ANTINEOPLASTIC AGENT that functions as a PROTEIN KINASE INHIBITOR for EGFR associated tyrosine kinase. It is used in the treatment of NON-SMALL CELL LUNG CANCER.

A quinazoline compound having a (3-ethynylphenyl)amino group at the 4-position and two 2-methoxyethoxy groups at the 6- and 7-positions.


Interstitial pneumonitis

Inflammation of interstitial lung tissue, usually associated with infection.


Erythromycin ethylsuccinate

A macrolide antibiotic, produced by Streptomyces erythreus. This compound is an ester of erythromycin base and succinic acid. It acts primarily as a bacteriostatic agent. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process inhibits peptidyl transferase activity and interferes with translocation of amino acids during translation and assembly of proteins.

A erythromycin derivative that is erythromycin A in which the hydroxy group at position 3R is substituted by a (4-ethoxy-4-oxobutanoyl)oxy group. It is used for the treatment of a wide variety of bacterial infections.


Escitalopram

A 1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-2-benzofuran-5-carbonitrile that has S-configuration at the chiral centre. It is the active enantiomer of citalopram.


post-traumatic stress disorder

An anxiety disorder precipitated by an experience of intense fear or horror while exposed to a traumatic (especially life-threatening) event. The disorder is characterized by intrusive recurring thoughts or images of the traumatic event; avoidance of anything associated with the event; a state of hyperarousal and diminished emotional responsiveness. These symptoms are present for at least one month and the disorder is usually long-term.


Famotidine

A competitive histamine H2-receptor antagonist. Its main pharmacodynamic effect is the inhibition of gastric secretion. Computer-aided, structure-based, virtual screening of libraries of compounds against SARS-CoV-2 proteins suggested potential for famotidine to interact with viral proteases in-volved in coronavirus replication. HOWEVER, there is no clinical trial evidence supporting efficacy or safety for treatment of COVID-19.


Fenofibrate

An antilipemic agent which reduces both CHOLESTEROL and TRIGLYCERIDES in the blood.

A chlorobenzophenone that is (4-chlorophenyl)(phenyl)methanone substituted by a [2-methyl-1-oxo-1-(propan-2-yloxy)propan-2-yl]oxy group at position 1 on the phenyl ring.


Ethoheptazine

major descriptor (65-83); on-line search AZEPINES (65-83); Index Medicus search ETHOHEPTAZINE (65-83); RN given refers to parent cpd; structure


Etomidate

Imidazole derivative anesthetic and hypnotic with little effect on blood gases, ventilation, or the cardiovascular system. It has been proposed as an induction anesthetic.

The ethyl ester of 1-[(1R)-1-phenylethyl]-1H-imidazole-5-carboxylic acid. It is an intravenous general anaesthetic with no analgesic activity.


Abnormal Mammogram

A radiologic finding indicating the presence of abnormalities in the breast parenchyma identified in a mammogram performed for screening or diagnostic purposes.  These abnormalities include calcifications, breast tissue distortion, presence of areas of density, and presence of benign or malignant tumors.


papilledema

Swelling around the optic disk, usually due to increased intracranial pressure or pressure on the optic nerve by a tumor.


Etodolac

A non-steroidal anti-inflammatory agent and cyclooxygenase-2 (COX-2) inhibitor with potent analgesic and anti-arthritic properties. It has been shown to be effective in the treatment of OSTEOARTHRITIS; RHEUMATOID ARTHRITIS; ANKYLOSING SPONDYLITIS; and in the alleviation of postoperative pain (PAIN, POSTOPERATIVE).

A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens is substituted by a 1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl moiety. A preferential inhibitor of cyclo-oxygenase 2 and non-steroidal anti-inflammatory, it is used for the treatment of rheumatoid arthritis and osteoarthritis, and for the alleviation of postoperative pain. Administered as the racemate, only the (S)-enantiomer is active.


furunculosis

A persistent skin infection marked by the presence of furuncles, often chronic and recurrent. In humans, the causative agent is various species of staphylococcus. In salmonid fish (salmonids), the pathogen is aeromonas salmonicida.


Gabapentin

The mechanism by which gabapentin exerts its analgesic action is unknown, but in animal models of analgesia, gabapentin prevents allodynia (pain-related behavior in response to a normally innocuous stimulus) and hyperalgesia (exaggerated response to painful stimuli). In particular, gabapentin prevents pain-related responses in several models of neuropathic pain in rats or mice (e.g., spinal nerve ligation models, streptozocin-induced diabetes model, spinal cord injury model, acute herpes zoster infection model). Gabapentin also decreases pain-related responses after peripheral inflammation (carrageenan footpad test, late phase of formalin test). Gabapentin did not alter immediate pain-related behaviors (rat tail flick test, formalin footpad acute phase, acetic acid abdominal constriction test, footpad heat irradiation test). The mechanism by which gabapentin exerts its anticonvulsant action is unknown, but in animal test systems designed to detect anticonvulsant activity, gabapentin prevents seizures as do other marketed anticonvulsants. Gabapentin exhibits antiseizure activity in mice and rats in both the maximal electroshock and pentylenetetrazole seizure models and other preclinical models (e.g., strains with genetic epilepsy, etc.). Gabapentin is structurally related to the neurotransmitter GABA (gamma-aminobutyric acid) but it does not modify GABAA or GABAB radioligand binding, it is not converted metabolically into GABA or a GABA agonist, and it is not an inhibitor of GABA uptake or degradation. Gabapentin was tested in radioligand binding assays at concentrations up to 100 uM and did not exhibit affinity for a number of other common receptor sites, including benzodiazepine, glutamate, N-methyl-D-aspartate (NMDA), quisqualate, kainate, strychnine-insensitive or strychnine-sensitive glycine, alpha 1, alpha 2, or beta adrenergic, adenosine A1 or A2, cholinergic muscarinic or nicotinic, dopamine D1 or D2, histamine H1, serotonin S1 or S2, opiate mu, delta or kappa, cannabinoid 1, voltage-sensitive calcium channel sites labeled with nitrendipine or diltiazem, or at voltage-sensitive sodium channel sites labeled with batrachotoxinin A 20-alpha-benzoate. Furthermore, gabapentin did not alter the cellular uptake of dopamine, noradrenaline, or serotonin. In vitro studies with radiolabeled gabapentin have revealed a gabapentin binding site in areas of rat brain including neocortex and hippocampus. A high-affinity binding protein in animal brain tissue has been identified as an auxiliary subunit of voltage-activated calcium channels.

A gamma-amino acid that is cyclohexane substituted at position 1 by aminomethyl and carboxymethyl groups. Used for treatment of neuropathic pain and restless legs syndrome.


Fluticasone Propionate

A STEROID with GLUCOCORTICOID RECEPTOR activity that is used to manage the symptoms of ASTHMA; ALLERGIC RHINITIS, and ATOPIC DERMATITIS. It has received approval to be used in combination with salmeterol.

A trifluorinated corticosteroid that consists of 6alpha,9-difluoro-11beta,17alpha-dihydroxy-17beta-{[(fluoromethyl)sulfanyl]carbonyl}-16-methyl-3-oxoandrosta-1,4-diene bearing a propionyl substituent at position 17; has anti-inflammatory, anti-asthmatic and anti-allergic activity.


Fluvastatine

An indole-heptanoic acid derivative that inhibits HMG COA REDUCTASE and is used to treat HYPERCHOLESTEROLEMIA. In contrast to other statins, it does not appear to interact with other drugs that inhibit CYP3A4.

A racemate comprising equimolar amounts of (3R,5S)- and (3S,5R)-fluvastatin. An HMG-CoA reductase inhibitor, it is used (often as the corresponding sodium salt) to reduce triglycerides and LDL-cholesterol, and increase HDL-chloesterol, in the treatment of hyperlipidaemia.


Operative Surgical Procedures

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Fentanyl

A potent narcotic analgesic, abuse of which leads to habituation or addiction. It is primarily a mu-opioid agonist. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance.

A monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of N-phenyl-1-(2-phenylethyl)piperidin-4-amine with propanoic acid.


Flumazenil

A potent benzodiazepine receptor antagonist. Since it reverses the sedative and other actions of benzodiazepines, it has been suggested as an antidote to benzodiazepine overdoses.

An organic heterotricyclic compound that is 5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepine which is substituted at positions 3, 5, 6, and 8 by ethoxycarbonyl, methyl, oxo, and fluoro groups, respectively. It is used as an antidote to benzodiazepine overdose.


panic disorder

An anxiety disorder characterized by multiple unexpected panic attacks with persistent concern of recurring attacks. Panic disorder may or may not be accompanied by agoraphobia.


Fluorometholone

A glucocorticoid employed, usually as eye drops, in the treatment of allergic and inflammatory conditions of the eye. It has also been used topically in the treatment of various skin disorders. (From Martindale, The Extra Pharmacopoeia, 30th ed, p732)

A member of the class of glucocorticoids that is Delta(1)-progesterone substituted at positions 11beta and 17 by hydroxy groups, at position 6alpha by a methyl group and at position 9 by a fluoro group. Used for the treatment of corticosteroid-responsive inflammation of the palpebral and bulbar conjunctiva, cornea and anterior segment of the globe.


ocular tuberculosis

Tuberculous infection of the eye, primarily the iris, ciliary body, and choroid.


Fluphenazine

A phenothiazine used in the treatment of PSYCHOSES. Its properties and uses are generally similar to those of CHLORPROMAZINE.

A member of the class of phenothiazines that is 10H-phenothiazine having a trifluoromethyl subsitituent at the 2-position and a 3-[4-(2-hydroxyethyl)piperazin-1-yl]propyl group at the N-10 position.


Floxuridine

An antineoplastic antimetabolite that is metabolized to fluorouracil when administered by rapid injection; when administered by slow, continuous, intra-arterial infusion, it is converted to floxuridine monophosphate. It has been used to treat hepatic metastases of gastrointestinal adenocarcinomas and for palliation in malignant neoplasms of the liver and gastrointestinal tract.

A pyrimidine 2'-deoxyribonucleoside compound having 5-fluorouracil as the nucleobase; used to treat hepatic metastases of gastrointestinal adenocarcinomas and for palliation in malignant neoplasms of the liver and gastrointestinal tract.


Fluocinonide

A topical glucocorticoid used in the treatment of ECZEMA.


multiple organ dysfunction syndrome

The development of potentially reversible physiologic derangement involving two or more organ systems not involved in the disorder that resulted in intensive care unit (ICU) admission, and arising in the wake of a potentially life-threatening physiologic insult.


Goserelin

A synthetic long-acting agonist of GONADOTROPIN-RELEASING HORMONE. Goserelin is used in treatments of malignant NEOPLASMS of the prostate, uterine fibromas, and metastatic breast cancer.


Ganciclovir

An ACYCLOVIR analog that is a potent inhibitor of the Herpesvirus family including cytomegalovirus. Ganciclovir is used to treat complications from AIDS-associated cytomegalovirus infections.

An oxopurine that is  guanine substituted by a [(1,3-dihydroxypropan-2-yl)oxy]methyl group at position 9. Ganciclovir is an antiviral drug used to treat or prevent AIDS-related cytomegalovirus infections.


dermatophytosis of groin and perianal area

Dermatophytosis involving the stratum corneum of the skin of the groin and perianal area.


Halofantrine

used in treatment of mild to moderate acute malaria


Sinus bradycardia

Bradycardia related to a mean resting sinus rate of less than 50 beats per minute.


Hydralazine

A direct-acting vasodilator that is used as an antihypertensive agent.

The 1-hydrazino derivative of phthalazine; a direct-acting vasodilator that is used as an antihypertensive agent.


head and neck cancer

A primary or metastatic malignant neoplasm affecting the head and neck. Representative examples include oral cavity squamous cell carcinoma, laryngeal squamous cell carcinoma, and salivary gland carcinoma.


Hydroxyzine

A histamine H1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite CETIRIZINE, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.

A N-alkylpiperazine that is piperzine in which the nitrogens atoms are substituted by 2-(2-hydroxyethoxy)ethyl and (4-chlorophenyl)(phenyl)methyl groups respectively.


Systemic Inflammatory Response Syndrome

A generalized state of dysregulated inflammation induced by noninfectious processes. It is characterized by two or more of the following signs and symptoms: fever or hypothermia, increased heart rate, increased respiratory rate, and abnormal white blood cell count.


varicella zoster infection

A highly contagious viral infection caused by the varicella zoster virus. Clinically, it may be manifested as shingles or chicken pox.


Broad spectrum antifungal agent used for long periods at high doses, especially in immunosuppressed patients.

A racemate consisting of equimolar amounts of (2R,4S)- and (2S,4R)-ketoconazole.


oral candidiasis

Infection of the mucosal lining of the mouth with the fungus Candida albicans.


nephrogenic diabetes insipidus

Nephrogenic diabetes insipidus (NDI) is characterized by polyuria with polydipsia, recurrent bouts of fever, constipation, and acute hypernatremic dehydration after birth that may cause neurological sequelae. Polyuria may exceed 10 liters in children.


Imipenem

Semisynthetic thienamycin that has a wide spectrum of antibacterial activity against gram-negative and gram-positive aerobic and anaerobic bacteria, including many multiresistant strains. It is stable to beta-lactamases. Clinical studies have demonstrated high efficacy in the treatment of infections of various body systems. Its effectiveness is enhanced when it is administered in combination with CILASTATIN, a renal dipeptidase inhibitor.

A broad-spectrum, intravenous beta-lactam antibiotic of the carbapenem subgroup.


Gas gangrene caused by clostridium perfringens


Iodinated glycerol

secretolytic agent; RN given refers to cpd without iodine locant


Iodoquinol

One of the halogenated 8-quinolinols widely used as an intestinal antiseptic, especially as an antiamebic agent. It is also used topically in other infections and may cause CNS and eye damage. It is known by very many similar trade names world-wide.

A monohydroxyquinoline that is quinolin-8-ol in which the hydrogens at positions 5 and 7 are replaced by iodine.  It is considered the drug of choice for treating asymptomatic or moderate forms of amoebiasis.


telangiectasis

Local dilatation of small vessels resulting in red discoloration of the skin or mucous membranes.


Isotretinoin

A topical dermatologic agent that is used in the treatment of ACNE VULGARIS and several other skin diseases. The drug has teratogenic and other adverse effects.

A retinoic acid that is all-trans-retinoic acid in which the double bond which is alpha,beta- to the carboxy group is isomerised to Z configuration. A synthetic retinoid, it is used for the treatment of severe cases of acne and other skin diseases.


candidemia

A form of invasive candidiasis where species of candida are present in the blood.


pancytopenia

A finding of low numbers of red and white blood cells and platelets in the peripheral blood.


Labetalol

A salicylamide derivative that is a non-cardioselective blocker of BETA-ADRENERGIC RECEPTORS and ALPHA-1 ADRENERGIC RECEPTORS.

A member of the class of benzamides that is benzamide substituted by a hydroxy group at position 2 and by a 1-hydroxy-2-[(4-phenylbutan-2-yl)amino]ethyl group at position 5.


Lapatinib

A quinazoline derivative that inhibits EPIDERMAL GROWTH FACTOR RECEPTOR and HER2 (RECEPTOR, ERBB-2) tyrosine kinases. It is used for the treatment of advanced or metastatic breast cancer, where tumors overexpress HER2.


Somatuline

synthetic octapeptide analog of somatostatin; inhibits accelerated transplant atherosclerosis in rabbit heart arteries


Arginine

An essential amino acid that is physiologically active in the L-form.

An L-alpha-amino acid that is the L-isomer of arginine.


lytic metastatic bone lesion

Dissolution of bone that particularly involves the removal or loss of calcium.


thrombophilia

A condition characterized by an abnormally high level of thrombi. Causes include thrombotic thrombocytopenic purpura, disseminated intravascular coagulation, bone marrow disorders, and antiphospholipid antibody syndrome.


Mesalamine

An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed)

A monohydroxybenzoic acid that is salicylic acid substituted by an amino group at the 5-position.


Mefloquine hydrochloride

A phospholipid-interacting antimalarial drug (ANTIMALARIALS). It is very effective against PLASMODIUM FALCIPARUM with very few side effects.

A racemate composed of (+)-(11R,2'S)- and (-)-(11S,2'R)-enantiomers of mefloquine. An antimalarial agent which acts as a blood schizonticide; its mechanism of action is unknown.


Meloxicam

Meloxicam is a nonsteroidal anti-inflammatory drug (NSAID) that exhibits anti-inflammatory, analgesic, and antipyretic activities in animal models. The mechanism of action of meloxicam, like that of other NSAIDs, may be related to prostaglandin synthetase (cyclo-oxygenase) inhibition.

A benzothiazine that is piroxicam in which the pyridin-2-yl group is replaced by a 5-methyl-1,3-thiazol-2-yl group. A non-steroidal anti-inflammatory drug and selective inhibitor of COX-2, it is used particularly for the management of rheumatoid arthritis.


Gastrointestinal perforation

A rupture in the wall of any structure of the digestive system caused by traumatic or pathologic processes.


Mephobarbital

A barbiturate that is metabolized to PHENOBARBITAL. It has been used for similar purposes, especially in EPILEPSY, but there is no evidence mephobarbital offers any advantage over PHENOBARBITAL.

A member of the class of barbiturates, the structure of which is that of barbituric acid substituted at N-1 by a methyl group and at C-5 by ethyl and phenyl groups.


Pseudomonas aeruginosa infectious disease


Syncope

Syncope refers to a generalized weakness of muscles with loss of postural tone, inability to stand upright, and loss of consciousness. Once the patient is in a horizontal position, blood flow to the brain is no longer hindered by gravitation and consciousness is regained. Unconsciousness usually lasts for seconds to minutes. Headache and drowsiness (which usually follow seizures) do not follow a syncopal attack. Syncope results from a sudden impairment of brain metabolism usually due to a reduction in cerebral blood flow.


lung cancer

A malignant neoplasm involving the lung.


thyroid cancer

A malignant neoplasm involving the thyroid gland


Losartan

An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.

A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position


Maprotiline

A bridged-ring tetracyclic antidepressant that is both mechanistically and functionally similar to the tricyclic antidepressants, including side effects associated with its use.


iritis

Inflammation of the iris.


echinococcus granulosus infectious disease

An disease or disorder caused by infection with Echinococcus granulosus.


Lumefantrine

Lumefantrine is an antimalarial agent. Available data suggest lumefantrine inhibits the formation of beta-hematin by forming a complex with hemin.

A member of the class of fluorenes that is 9-(p-chlorobenzylidene)-9H-fluorene which is substitutec by chlorine at positions 2 and 7, and by a 2-(dibutylamino)-1-hydroxyethyl group at position 4. An antimalarial drug used in combination with artemether for the treatment of multi-drug resistant strains of falciparum malaria.


pericarditis

An inflammatory process affecting the pericardium.


Methotrexate

An antineoplastic antimetabolite with immunosuppressant properties. It is an inhibitor of TETRAHYDROFOLATE DEHYDROGENASE and prevents the formation of tetrahydrofolate, necessary for synthesis of thymidylate, an essential component of DNA.


Metformin

A biguanide hypoglycemic agent used in the treatment of non-insulin-dependent diabetes mellitus not responding to dietary modification. Metformin improves glycemic control by improving insulin sensitivity and decreasing intestinal absorption of glucose. (From Martindale, The Extra Pharmacopoeia, 30th ed, p289)

A member of the class of guanidines that is biguanide the carrying two methyl substituents at position 1.


Methimazole

A thioureylene antithyroid agent that inhibits the formation of thyroid hormones by interfering with the incorporation of iodine into tyrosyl residues of thyroglobulin. This is done by interfering with the oxidation of iodide ion and iodotyrosyl groups through inhibition of the peroxidase enzyme.

A member of the class of imidazoles that it imidazole-2-thione in which a methyl group replaces the hydrogen which is attached to a nitrogen.


Methantheline

an anticholinergic agent used as an adjunctive therapy in peptic ulcer


Montelukast

Montelukast is an orally active compound that binds with high affinity and selectivity to the CysLT1 receptor (in preference to other pharmacologically important airway receptors, such as the prostanoid, cholinergic, or beta-adrenergic receptor). Montelukast inhibits physiologic actions of  cysteinyl leukotriene LTD4 at the CysLT1 receptor without any agonist activity.


Asthma management

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Midalcipran

A cyclopropanecarboxamide serotonin and norepinephrine reuptake inhibitor (SNRI) that is used in the treatment of FIBROMYALGIA.


Hypomania

A less severe form of mania characterized by elevated mood, hyperactivity, and grandiosity. In contrast to mania, these symptoms do not cause significant impairment of the individual's productivity at work, or social and family relationships.


Misoprostol

A synthetic analog of natural prostaglandin E1. It produces a dose-related inhibition of gastric acid and pepsin secretion, and enhances mucosal resistance to injury. It is an effective anti-ulcer agent and also has oxytocic properties.

A diastereoisomeric mixture composed of approximately equal amounts of a double racemate of four of the sixteen possible diastereoisomers of methyl (13E)-11,16-dihydroxy-16-methyl-9-oxoprost-13-en-1-oate that is racemic prostaglandin E1 which is lacking the hydroxy group at position 15, but which has an additional hydroxy group at position 16. It is a synthetic prostaglandin E1 analogue, used in the treatment of gastric and duodenal ulcers. A weak abortifacient, it is also used for cervical ripening prior to surgical termination of pregnancy. The (11R,16S)-diastereoisomer is the pharmacologically active form.


Jaundice

Yellow pigmentation of the skin due to bilirubin, which in turn is the result of increased bilirubin concentration in the bloodstream.


Metipranolol

A beta-adrenergic antagonist effective for both beta-1 and beta-2 receptors. It is used as an antiarrhythmic, antihypertensive, and antiglaucoma agent.

3-(Propan-2-ylamino)propane-1,2-diol in which the hydrogen of the primary hydroxy group is substituted by a 4-acetoxy-2,3,5-trimethylphenoxy group. A non-cardioselective beta-blocker, it is used to lower intra-ocular pressure in the management of open-angle glaucoma.


Naproxen

An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout.

A methoxynaphthalene that is 2-methoxynaphthalene substituted by a carboxy ethyl group at position 6. Naproxen is a non-steroidal anti-inflammatory drug commonly used for the reduction of pain, fever, inflammation  and stiffness caused by conditions such as osteoarthritis, kidney stones, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, menstrual cramps, tendinitis, bursitis, and for the treatment of primary dysmenorrhea. It works by inhibiting both the COX-1 and COX-2 enzymes.


Nalbuphine

A narcotic used as a pain medication. It appears to be an agonist at KAPPA RECEPTORS and an antagonist or partial agonist at MU RECEPTORS.


Nicardipine

A potent calcium channel blockader with marked vasodilator action. It has antihypertensive properties and is effective in the treatment of angina and coronary spasms without showing cardiodepressant effects. It has also been used in the treatment of asthma and enhances the action of specific antineoplastic agents.

A dihydropyridine that is 1,4-dihydropyridine substituted by a methyl, {2-[benzyl(methyl)amino]ethoxy}carbonyl, 3-nitrophenyl, methoxycarbonyl and methyl groups at positions 2, 3, 4, 5 and 6, respectively.


cerebral infarction

An ischemic condition of the brain, producing a persistent focal neurological deficit in the area of distribution of the cerebral arteries.


Nefazodone

an antidepressant for oral administration with a chemical structure unrelated to selective serotonin reuptake inhibitors, tricyclics, tetracyclics, or monoamine oxidase inhibitors (MAOI), inhibits neuronal uptake of serotonin and norepinephrine


Nepafenac

penetrates the cornea and is converted by ocular tissue hydrolases to amfenac, a nonsteroidal anti-inflammatory drug, amfenac is thought to inhibit the action of prostaglandin H synthase (cyclooxygenase), an enzyme required for prostaglandin production

A monocarboxylic acid amide that is amfenac in which the carboxylic acid group has been converted into the corresponding carboxamide. It is a prodrug for amfenac, used in eye drops to treat pain and inflammation following cataract surgery.


keratitis

A corneal disease that is characterized by inflammation of the cornea.


diastolic heart failure

Heart failure caused by abnormal myocardial relaxation during diastole leading to defective cardiac filling.


hyperprolactinemia

Abnormally high level of prolactin in the blood.


An alkaloid from SOLANACEAE, especially DATURA and SCOPOLIA. Scopolamine and its quaternary derivatives act as antimuscarinics like ATROPINE, but may have more central nervous system effects. Its many uses include an anesthetic premedication, the treatment of URINARY INCONTINENCE and MOTION SICKNESS, an antispasmodic, and a mydriatic and cycloplegic.


Salsalate

A dimeric benzoate ester obtained by intermolecular condensation between the carboxy of one molecule of salicylic acid with the phenol group of a second. It is a prodrug for salycylic acid that is used for treatment of rheumatoid arthritis and osteoarthritis and also shows activity against type II diabetes.


Salmeterol

Salmeterol is a selective long acting beta2-adrenoceptor agonist. In vitro studies show salmeterol to be at least 50 times more selective for beta2-adrenoceptors than albuterol. Although beta2-adrenoceptors are the predominant adrenergic receptors in bronchial smooth muscle and beta1-adrenoceptors are the predominant receptors in the heart, there are also beta2-adrenoceptors in the human heart comprising 10% to 50% of the total beta-adrenoceptors. The precise function of these receptors has not been established, but their presence raises the possibility that even selective beta2-agonists may have cardiac effects. The pharmacologic effects of beta2-adrenoceptor agonist drugs, including salmeterol, are at least in part attributable to stimulation of intracellular adenyl cyclase, the enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic-3',5'-adenosine monophosphate (cyclic AMP). Increased cyclic AMP levels cause relaxation of bronchial smooth muscle and inhibition of release of mediators of immediate hypersensitivity from cells, especially from mast cells. In vitro tests show that salmeterol is a potent and long-lasting inhibitor of the release of mast cell mediators, such as histamine, leukotrienes, and prostaglandin D2, from human lung. Salmeterol inhibits histamine-induced plasma protein extravasation and inhibits platelet-activating factor-induced eosinophil accumulation in the lungs of guinea pigs when administered by the inhaled route. In humans, single doses of salmeterol administered via inhalation aerosol attenuate allergen-induced bronchial hyper-responsiveness. It has received approval to be used in combination with fluticasone.

A phenol having a hydroxymethyl group at C-2 and a 1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl group at C-4; derivative of phenylethanolamine.


Marchiafava-Bignami disease

Marchiafava Bignami disease is defined by characteristic demyelination of the corpus callosum (erosion of the protective covering of nerve fibers joining the 2 hemispheres of the brain). The disease seems to most often affect severe and chronic alcoholics in their middle or late adult life. Early symptoms may include depression, paranoia, psychosis, or dementia. Seizures are common, and hemiparesis, aphasia, abnormal movements, and ataxia may sometimesprogress to coma and/or death. The cause of Marchiafava Bignami disease, including the potential role of nutritional deficiency, remains unknown. Improvement and recovery of some individuals has been reported. Treatment focuses on nutritional support and rehabilitation from alcoholism.


Sumatriptan

A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of MIGRAINE DISORDERS.

A sulfonamide that consists of N,N-dimethyltryptamine bearing an additional (N-methylsulfamoyl)methyl substituent at position 5. Selective agonist for a vascular 5-HT1 receptor subtype (probably a member of the 5-HT1D family). Used (in the form of its succinate salt) for the acute treatment of migraine with or without aura in adults.


transient ischemic attack

A brief attack (from a few minutes to an hour) of cerebral dysfunction of vascular origin, with no persistent neurological deficit.


Sulfacetamide

An anti-bacterial agent that is used topically to treat skin infections and orally for urinary tract infections.

A sulfonamide that is sulfanilamide acylated on the sulfonamide nitrogen.


inherited porphyria

Porphyrias constitute a group of eight hereditary metabolic diseases characterized by intermittent neuro-visceral manifestations, cutaneous lesions or by the combination of both.


A macrolide isolated from the culture broth of a strain of Streptomyces tsukubaensis that has strong immunosuppressive activity in vivo and prevents the activation of T-lymphocytes in response to antigenic or mitogenic stimulation in vitro.


Sulindac

A sulfinylindene derivative prodrug whose sulfinyl moiety is converted in vivo to an active NSAID analgesic. Specifically, the prodrug is converted by liver enzymes to a sulfide which is excreted in the bile and then reabsorbed from the intestine. This helps to maintain constant blood levels with reduced gastrointestinal side effects.

A monocarboxylic acid that is 1-benzylidene-1H-indene which is substituted at positions 2, 3, and 5 by methyl, carboxymethyl, and fluorine respectively, and in which the phenyl group of the benzylidene moiety is substituted at the para position by a methylsulfinyl group. It is a prodrug for the corresponding sulfide, a non-steroidal anti-inflammatory drug, used particularly in the treatment of acute and chronic inflammatory conditions.


Sulfamerazine

A sulfanilamide that is used as an antibacterial agent.

A sulfonamide consisting of pyrimidine with a methyl substituent at the 4-position and a 4-aminobenzenesulfonamido group at the 2-position.


Sulfisoxazole

A short-acting sulfonamide antibacterial with activity against a wide range of gram- negative and gram-positive organisms.

A sulfonamide antibacterial with an oxazole substituent. It has antibiotic activity against a wide range of gram-negative and gram-positive organisms.


Slow acetylator due to N-acetyltransferase enzyme variant


Sorafenib

Sorafenib is a kinase inhibitor that decreases tumor cell proliferation in vitro. Sorafenib was shown to inhibit multiple intracellular (c-CRAF, BRAF and mutant BRAF) and cell surface kinases (KIT, FLT-3, RET, RET/PTC, VEGFR-1, VEGFR-2, VEGFR-3, and PDGFR-beta). Several of these kinases are thought to be involved in tumor cell signaling, angiogenesis and apoptosis. Sorafenib inhibited tumor growth of HCC, RCC, and DTC human tumor xenografts in immunocompromised mice. Reductions in tumor angiogenesis were seen in models of HCC and RCC upon sorafenib treatment, and increases in tumor apoptosis were observed in models of hepatocellular carcinoma, renal cell carcinoma, and differentiated thyroid carcinoma.

A member of the class of phenylureas that is urea in which one of the nitrogens is substituted by a 4-chloro-3-trifluorophenyl group while the other is substituted by a phenyl group which, in turn, is substituted at the para position by a [2-(methylcarbamoyl)pyridin-4-yl]oxy group.


Stanozolol

A synthetic steroid that has anabolic and androgenic properties. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1194)

An organic heteropentacyclic compound resulting from the formal condensation of the 3-keto-aldehyde moiety of oxymetholone with hydrazine. Like oxymetholone, it is a synthetic anabolic steroid. It has both anabolic and androgenic properties, and has been used to treat hereditary angioedema and various vascular disorders. It has also been widely abused by professional athletes.


rhinoscleroma

A granulomatous disease caused by klebsiella rhinoscleromatis infection. Despite its name, this disease is not limited to the nose and nasopharynx but may affect any part of the respiratory tract, sometimes with extension to the lip and the skin.


Solifenacin

A quinuclidine and tetrahydroisoquinoline derivative and selective M3 MUSCARINIC ANTAGONIST. It is used as a UROLOGIC AGENT in the treatment of URINARY INCONTINENCE.


Theophylline

A plant genus of the family ASTERACEAE. The name "prickly burweed" is sometimes used but causes confusion with AMSINCKIA.

A dimethylxanthine having the two methyl groups located at positions 1 and 3. It is structurally similar to caffeine and is found in green and black tea.


Terbutaline

A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.

A member of the class of phenylethanolamines that is catechol substituted at position 5 by a 2-(tert-butylamino)-1-hydroxyethyl group.


Testosterone

A potent androgenic steroid and major product secreted by the LEYDIG CELLS of the TESTIS. Its production is stimulated by LUTEINIZING HORMONE from the PITUITARY GLAND. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to DIHYDROTESTOSTERONE or ESTRADIOL.

An androstanoid having 17beta-hydroxy and 3-oxo groups, together with unsaturation at C-4-C-5..


Tazarotene

a topical acetylenic retinoid; a topical kerytolytic

The ethyl ester of tazarotenic acid. A prodrug for tazarotenic acid, it is used for the treatment of  psoriasis, acne, and sun-damaged skin.


photosensitivity disease

Abnormal responses to sunlight or artificial light due to extreme reactivity of light-absorbing molecules in tissues. It refers almost exclusively to skin photosensitivity, including sunburn, reactions due to repeated prolonged exposure in the absence of photosensitizing factors, and reactions requiring photosensitizing factors such as photosensitizing agents and certain diseases. With restricted reference to skin tissue, it does not include photosensitivity of the eye to light, as in photophobia or photosensitive epilepsy.


Tretinoin

An important regulator of GENE EXPRESSION during growth and development, and in NEOPLASMS. Tretinoin, also known as retinoic acid and derived from maternal VITAMIN A, is essential for normal GROWTH; and EMBRYONIC DEVELOPMENT. An excess of tretinoin can be teratogenic. It is used in the treatment of PSORIASIS; ACNE VULGARIS; and several other SKIN DISEASES. It has also been approved for use in promyelocytic leukemia (LEUKEMIA, PROMYELOCYTIC, ACUTE).

A retinoic acid in which all four exocyclic double bonds have E- (trans-) geometry.


Fever

Body temperature elevated above the normal range.


Topotecan

An antineoplastic agent used to treat ovarian cancer. It works by inhibiting DNA TOPOISOMERASES, TYPE I.

A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks.


interstitial lung disease

A diverse group of lung diseases that affect the lung parenchyma. They are characterized by an initial inflammation of pulmonary alveoli that extends to the interstitium and beyond leading to diffuse pulmonary fibrosis. Interstitial lung diseases are classified by their etiology (known or unknown causes), and radiological-pathological features.


Thiabendazole

2-Substituted benzimidazole first introduced in 1962. It is active against a variety of nematodes and is the drug of choice for STRONGYLOIDIASIS. It has CENTRAL NERVOUS SYSTEM side effects and hepatototoxic potential. (From Smith and Reynard, Textbook of Pharmacology, 1992, p919)

A member of the class of benzimidazoles carrying a 1,3-thiazol-4-yl substituent at position 2. A mainly post-harvest fungicide used to control a wide range of diseases including Aspergillus, Botrytis, Cladosporium and Fusarium.


cutaneous larva migrans

Cutaneous larva migrans is a rare parasitic disease characterized by single or multiple, linear or serpinginous, erythematous, slightly elevated cutaneous tracks caused by the larval migration of various nematode species. Tracks are variable in length, generally a few millimeters wide and are frequently located on the feet (although any area of the body is possible). Patients typically present with severe, intractable pruritus, which, in some cases, may cause impaired concentration, loss of sleep, and mood disturbances.


hereditary hemochromatosis

An inherited metabolic disorder characterized by iron accumulation in the tissues.


VERTEPORFIN

A benzoporphyrin derivative that is used in PHOTOCHEMOTHERAPY to treat wet type MACULAR DEGENERATION.

An equimolar mixture of the 9-methyl ester and 13-methyl ester of trans-(+-)-18-ethenyl-4,4a-dihydro-3,4-bis(methoxycarbonyl)-4a,8,14,19-tetramethyl-23H,25H-benzo[b]porphine-9,13-dipropanoic acid. It is used as a photosensitizer in photodynamic therapy to eliminate the abnormal blood vessels in the eye associated with neovascular (wet) age-related macular degeneration. Verteporfin accumulates in these abnormal blood vessels and, when activated by red (693 nm) laser light in the presence of oxygen, produces highly reactive short-lived singlet oxygen and other reactive oxygen radicals, resulting in local damage to the endothelium and blockage of the vessels.


Tromethamine

An organic amine proton acceptor. It is used in the synthesis of surface-active agents and pharmaceuticals; as an emulsifying agent for cosmetic creams and lotions, mineral oil and paraffin wax emulsions, as a biological buffer, and used as an alkalizer. (From Merck, 11th ed; Martindale, The Extra Pharmacopoeia, 30th ed, p1424)

A primary amino compound that is tert-butylamine in which one hydrogen attached to each methyl group is replaced by a hydroxy group. A compound widely used as a biological buffer substance in the pH range 7--9; pKa = 8.3 at 20 degreeC; pKa = 7.82 at 37 degreeC.


Valsartan

A tetrazole derivative and ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKER that is used to treat HYPERTENSION. It has been approved in combination with sacubitril (under the name ENTRESTO) for the treatment of heart failure.

A monocarboxylic acid amide consisting of L-valine in which the amino hydrogens have been replaced by a pentanoyl and a  [2'-(1H-tetrazol-5-yl)biphenyl]-4-yl]methyl group. It exhibits  antihypertensive activity.


Valganciclovir

Valganciclovir is an L-valyl ester (prodrug) of ganciclovir that exists as a mixture of two diastereomers. After oral administration, both diastereomers are rapidly converted to ganciclovir by intestinal and hepatic esterases. Ganciclovir is a synthetic analogue of 2'-deoxyguanosine, which inhibits replication of human CMV in cell culture and in vivo.

The L-valinyl ester of ganciclovir, into which it is rapidly converted by intestinal and hepatic esterases. It is a synthetic analogue of 2'-deoxyguanosine.


Tropicamide

One of the MUSCARINIC ANTAGONISTS with pharmacologic action similar to ATROPINE and used mainly as an ophthalmic parasympatholytic or mydriatic.


epilepsy with generalized tonic-clonic seizures

A generalized tonic-clonic seizure.


Hypoalbuminemia

Reduction in the concentration of albumin in the blood.


Cetylpyridinium

Cationic bactericidal surfactant used as a topical antiseptic for skin, wounds, mucous membranes, instruments, etc.; and also as a component in mouthwash and lozenges.


Desonide

A nonfluorinated corticosteroid anti-inflammatory agent used topically for DERMATOSES.

Triamcinolone acetonide with hydrogen instead of the fluorine substituent at position 9. A corticosteroid anti-inflammatory, it is used topically as a cream, ointment or lotion for the treatment of various skin disorders.


Ornithine transcarbamylase deficiency (OTCD) is a disorder of urea cycle metabolism and ammonia detoxification characterized by either a severe, neonatal-onset disease found almost exclusively in males, or later-onset (partial) forms of the disease. Both present with episodes of hyperammonemia that can be fatal and which can lead to neurological complications.


Voriconazole

A triazole antifungal agent that specifically inhibits STEROL 14-ALPHA-DEMETHYLASE and CYTOCHROME P-450 CYP3A.

A triazole-based antifungal agent used for the treatment of esophageal candidiasis, invasive pulmonary aspergillosis, and serious fungal infections caused by Scedosporium apiospermum and Fusarium spp. It is an inhibitor of cytochrome P450 2C9 (CYP2C9) and CYP3A4.


Visual impairment

Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery.


Zolmitriptan

an antimigraine compound; a serotonin (5HT)-1D receptor agonist

A member of the class of tryptamines that is N,N-dimethyltryptamine in which the hydrogen at position 5 of the indole ring has been replaced by a [(4S)-2-oxo-1,3-oxazolidin-4-yl]methyl group. A serotonin 5-HT1 B and D receptor agonist, it is used for the treatment of migraine.


Dihydrotachysterol

A VITAMIN D that can be regarded as a reduction product of vitamin D2.

A hydroxy seco-steroid that is 9,10-secoergosta-5,7,22-triene substituted by a hydroxy group at position 3. A synthetic analogue of vitamin D that acts a bone density conservation agent.


Ziprasidone

a benzisothiazoylpiperazine derivative; has combined dopamine and serotonin receptor antagonist activity; structurally related to tiospirone

A piperazine compound having 1,2-benzothiazol-3-yl- and 2-(6-chloro-1,3-dihydro-2-oxindol-5-yl)ethyl substituents attached to the nitrogen atoms.


short bowel syndrome

Short bowel syndrome is an intestinal failure due to either a congenital defect, intestinal infarction or extensive surgical resection of the intestinal tract that results in a functional small intestine of less than 200cm in length and is characterized by diarrhea, nutrient malabsoption, bowel dilation and dysmobility.


Tipranavir

Tipranavir is an HIV-1 protease inhibitor that inhibits the virus-specific processing of the viral Gag and Gag-Pol polyproteins in HIV-1 infected cells, thus preventing formation of mature virions. There was some evidence of in vitro activity against SARS-CoV-2, but no clinical trial data was found to support use in the treatment of COVID-19.

A pyridine-2-sulfonamide substituted at C-5 by a trifluoromethyl group and at the sulfonamide nitrogen by a dihydropyrone-containing m-tolyl substituent. It is an HIV-1 protease inhibitor.


sinusitis

An acute or chronic inflammatory process affecting the mucous membranes of any sinus cavity.


hypoglycemia

Abnormally low level of glucose in the blood.


Osteomyelitis due to Staphylococcus aureus


A chondroitin sulfate in which the site of sulfation is carbon 4 of the N-acetylgalactosamine (GalNAc) sugar.


Poisoning of animals with phosphate salts


Tiludronic Acid

a bone resorption inhibitor; an antihypercalcemic agent; used in the tratment of Paget's disease; used in the treatment and prevention of osteoporosis; structure given in first source


Thiopental

A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration.

A barbiturate, the structure of which is that of 2-thiobarbituric acid substituted at C-5 by ethyl and sec-pentyl groups.


acute intermittent porphyria

Acute intermittent porphyria is the most frequent and the most severe form of the acute hepatic porphyrias. It is characterized by the occurrence of neuro-visceral attacks without cutaneous manifestations.


Tolcapone

Tolcapone is a selective and reversible inhibitor of catechol-O-methyltransferase (COMT). The precise mechanism of action of tolcapone is unknown, but it is believed to be related to its ability to inhibit COMT and alter the plasma pharmacokinetics of levodopa. It is believed that these sustained plasma levels of levodopa result in more constant dopaminergic stimulation in the brain, leading to greater effects on the signs and symptoms of Parkinson's disease patients.

Benzophenone substituted on one of the phenyl rings at C-3 and C-4 by hydroxy groups and at C-5 by a nitro group, and on the other phenyl ring by a methyl group at C-4. It is an inhibitor of catechol O-methyltransferase.


Triamcinolone diacetate

lysyl oxidase antagonist; Polcortolon may also refers to triamcinolone


Triamterene

A pteridinetriamine compound that inhibits SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS.

Pteridine substituted at positions 2, 4 and 7 with amino groups and at position 6 with a phenyl group. A sodium channel blocker, it is used as a diuretic in the treatment of hypertension and oedema.


Trihexyphenidyl

One of the centrally acting MUSCARINIC ANTAGONISTS used for treatment of PARKINSONIAN DISORDERS and drug-induced extrapyramidal movement disorders and as an antispasmodic.


erythema multiforme

Erythema multiforme (EM) refers to a group ofhypersensitivity disorders characterized by symmetric red, patchy lesions, primarily on the arms and legs. The cause is unknown, but EM frequently occurs in association with herpes simplex virus, suggesting an immunologic process initiated by the virus. In half of the cases, the triggering agents appear to be medications, including anticonvulsants, sulfonamides, nonsteroidal anti-inflammatory drugs, and other antibiotics. In addition, some cases appear to be associated with infectious organisms such as Mycoplasma pneumoniae and many viral agents. Erythema multiforme is the mildest of three skin disorders that are often discussed in relation to each other. It is generally the mildest of the three. More severe is Stevens-Johnson syndrome. The most severe of the three is toxic epidermal necrolysis (TEN).


Oxytocin

A nonapeptide hormone released from the neurohypophysis (PITUITARY GLAND, POSTERIOR). It differs from VASOPRESSIN by two amino acids at residues 3 and 8. Oxytocin acts on SMOOTH MUSCLE CELLS, such as causing UTERINE CONTRACTIONS and MILK EJECTION.

A cyclic nonapeptide hormone with amino acid sequence CYIQNCPLG that also acts as a neurotransmitter in the brain; the principal uterine-contracting and milk-ejecting hormone of the posterior pituitary. Together with the neuropeptide vasopressin, it is believed to influence social cognition and behaviour.


pregnancy disorder with abortive outcome

The unintentional or intentional loss of a pregnancy before 22 weeks gestation.


Phenytoin

An anticonvulsant that is used to treat a wide variety of seizures. It is also an anti-arrhythmic and a muscle relaxant. The mechanism of therapeutic action is not clear, although several cellular actions have been described including effects on ion channels, active transport, and general membrane stabilization. The mechanism of its muscle relaxant effect appears to involve a reduction in the sensitivity of muscle spindles to stretch. Phenytoin has been proposed for several other therapeutic uses, but its use has been limited by its many adverse effects and interactions with other drugs.

A imidazolidine-2,4-dione that consists of hydantoin bearing two phenyl substituents at position 5.


megaloblastic anemia

Anemia characterized by the presence of unusually large erythroblasts in the bone marrow called megaloblasts. It is usually caused by vitamin B12 or folic acid deficiency. Other causes include toxins and drugs.


Piperacillin

Semisynthetic, broad-spectrum, AMPICILLIN derived ureidopenicillin antibiotic proposed for PSEUDOMONAS infections. It is also used in combination with other antibiotics.

A penicillin in which the substituent at position 6 of the penam ring is a 2-[(4-ethyl-2,3-dioxopiperazin-1-yl)carboxamido]-2-phenylacetamido group.


sympathetic ophthalmia

Sympathetic ophthalmia (SO) is a bilateral granulomatous anterior uveitis usually occurring within the three months following trauma or a surgical procedure involving one eye.


mycosis fungoides

Classical mycosis fungoides is the most common type of mycosis fungoides (MF), a form of cutaneous T-cell lymphoma, and is characterized by slow progression from patches to more infiltrated plaques and eventually to tumors.


Pralidoxime

A pyridinium ion that is 1-methylpyridinium substituted by a (hydroxyimino)methyl group at position 2.


Pravastatin

An antilipemic fungal metabolite isolated from cultures of Nocardia autotrophica. It acts as a competitive inhibitor of HMG CoA reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES).

A carboxylic ester resulting from the formal condensation of (S)-2-methylbutyric acid with the hydroxy group adjacent to the ring junction of (3R,5R)-7-[(1S,2S,6S,8S,8aR)-6,8-dihydroxy-2-methyl-1,2,6,7,8,8a-hexahydronaphthalen-1-yl]-3,5-dihydroxyheptanoic acid. Derived from microbial transformation of mevastatin, pravastatin is a reversible inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA). The sodium salt is used for lowering cholesterol and preventing cardiovascular disease. It is one of the lower potency statins, but has the advantage of fewer side effects compared with lovastatin and simvastatin.


Piroxicam

A cyclooxygenase inhibiting, non-steroidal anti-inflammatory agent (NSAID) that is well established in treating rheumatoid arthritis and osteoarthritis and used for musculoskeletal disorders, dysmenorrhea, and postoperative pain. Its long half-life enables it to be administered once daily.

A monocarboxylic acid amide resulting from the formal condensation of the carboxy group of 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid 1,1-dioxide with the exocyclic nitrogen of 2-aminopyridine. A non-steroidal anti-inflammatory drug of the oxicam class, it is used to relieve pain and works by preventing the production of endogenous prostaglandins involved in the mediation of pain, stiffness, tenderness and swelling.


Prazepam

A benzodiazepine that is used in the treatment of ANXIETY DISORDERS.


Promethazine

A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals.

A  tertiary amine that is a substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropan-2-amine moiety.


Propantheline

A muscarinic antagonist used as an antispasmodic, in rhinitis, in urinary incontinence, and in the treatment of ulcers. At high doses it has nicotinic effects resulting in neuromuscular blocking.


Progesterone

The major progestational steroid that is secreted primarily by the CORPUS LUTEUM and the PLACENTA. Progesterone acts on the UTERUS, the MAMMARY GLANDS and the BRAIN. It is required in EMBRYO IMPLANTATION; PREGNANCY maintenance, and the development of mammary tissue for MILK production. Progesterone, converted from PREGNENOLONE, also serves as an intermediate in the biosynthesis of GONADAL STEROID HORMONES and adrenal CORTICOSTEROIDS.

A C21-steroid hormone in which a pregnane skeleton carries oxo substituents at positions 3 and 20 and is unsaturated at C(4)-C(5). As a hormone, it is involved in the female menstrual cycle, pregnancy and embryogenesis of humans and other species.


mild pre-eclampsia

A pre-eclampsia characterized by the presence of hypertension without evidence of end-organ damage, in a woman who was normotensive before 20 weeks' gestation.


Procyclidine

A muscarinic antagonist that crosses the blood-brain barrier and is used in the treatment of drug-induced extrapyramidal disorders and in parkinsonism.

A tertiary alcohol that consists of propan-1-ol substituted by a cyclohexyl and a phenyl group at position 1 and a pyrrolidin-1-yl group at position 3.


Reserpine

An alkaloid found in the roots of Rauwolfia serpentina and R. vomitoria. Reserpine inhibits the uptake of norepinephrine into storage vesicles resulting in depletion of catecholamines and serotonin from central and peripheral axon terminals. It has been used as an antihypertensive and an antipsychotic as well as a research tool, but its adverse effects limit its clinical use.


Risperidone

A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.

A member of the class of pyridopyrimidines that is 2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one carrying an additional 2-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]ethyl group at position 2.


megaesophagus

An abnormal dilation of the esophagus not due to obstruction.


S-adenosylmethionine

Physiologic methyl radical donor involved in enzymatic transmethylation reactions and present in all living organisms. It possesses anti-inflammatory activity and has been used in treatment of chronic liver disease. (From Merck, 11th ed)

A sulfonium compound that is the S-adenosyl derivative of L-methionine. It is an intermediate in the metabolic pathway of methionine.


Quinapril

A tetrahydroisoquinoline derivative and ANGIOTENSIN CONVERTING ENZYME inhibitor that is used in the treatment of HYPERTENSION and HEART FAILURE.

A member of the class of isoquinolines that is (3S)-2-L-alanyl-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid in which the alpha-amino group of the alanyl residue has been substituted by a 1-ethoxycarbonyl-4-phenylbutan-2-yl group (the all-S isomer). A prodrug for quinaprilat (by hydrolysis of the ethyl ester to the corresponding carboxylic acid), it is used as an angiotensin-converting enzyme inhibitor (ACE inhibitor) used (generally as the hydrochloride salt) for the treatment of hypertension and congestive heart failure.


systemic lupus erythematosus

An autoimmune multi-organ disease typically associated with vasculopathy and autoantibody production. Most patients have antinuclear antibodies (ANA). The presence of anti-dsDNA or anti-Smith antibodies are highly-specific.


Clostridium difficile colitis

A bacterial infection of the colon secondary to infection with Clostridium difficile bacteria. This infection generally results from the loss of normal gut flora secondary to recent antibiotic use, and manifests as copious watery stools, with associated abdominal pain and myalgia. C. difficile is the most common cause of pseudomembranous colitis, and can progress to toxic megacolon if left untreated.


meningococcal meningitis

An acute bacterial disease caused by Neisseria meningitides that presents usually, but not always, with a rash (non blanching petechial or purpuric rash), progressively developing signs of meningitis (fever, vomiting, headache, photophobia, and neck stiffness) and later leading to confusion, delirium and drowsiness. Neck stiffness and photophobia are often absent in infants and young children who may manifest nonspecific signs such as irritability, inconsolable crying, poor feeding, and a bulging fontanel. Meningococcal meningitis may also present as part of early or late onset sepsis in neonates. The disease is potentially fatal. Surviving patients may develop neurological sequelae that include sensorineural hearing loss, seizures, spasticity, attention deficits and intellectual disability.


Renal Colic

Paroxysmal and severe flank pain radiating to the inguinal area. It is caused by the passage of a kidney stone through the ureter.


Bone marrow depression

A laboratory finding indicating decreased number of hematopoietic cells in the bone marrow. It may result from decreased proliferation of all or part of the hematopoietic series (erythroid, myeloid, and megakaryocytic). Microscopically, the hematopoietic cells are replaced by adipocytes.


Achilles tendonitis

Inflammation of the Achilles tendon.


Besifloxacin

Besifloxacin is an 8-chloro fluoroquinolone with a N-1 cyclopropyl group. The compound has activity against Gram-positive and Gram-negative bacteria due to the inhibition of both bacterial DNA gyrase and topoisomerase IV. DNA gyrase is an essential enzyme required for replication, transcription and repair of bacterial DNA. Topoisomerase IV is an essential enzyme required for partitioning of the chromosomal DNA during bacterial cell division.


Rufinamide

The precise mechanism(s) by which rufinamide exerts its antiepileptic effect is unknown. The results of in vitro studies suggest that the principal mechanism of action of rufinamide is modulation of the activity of sodium channels and, in particular, prolongation of the inactive state of the channel.


Shortened QT interval

Decreased time between the start of the Q wave and the end of the T wave as measured by the electrocardiogram (EKG).


Magnesium Hydroxide

An inorganic compound that occurs in nature as the mineral brucite. It acts as an antacid with cathartic effects.

A magnesium hydroxide in which the magnesium atom is bound to two hydroxide groups.


nephrolithiasis susceptibility caused by SLC26A1

Urolithiasis in which the composition of the stones is predominantly calcium oxalate.


brain edema

Increased intracellular or extracellular fluid in brain tissue. Cytotoxic brain edema (swelling due to increased intracellular fluid) is indicative of a disturbance in cell metabolism, and is commonly associated with hypoxic or ischemic injuries (see hypoxia, brain). An increase in extracellular fluid may be caused by increased brain capillary permeability (vasogenic edema), an osmotic gradient, local blockages in interstitial fluid pathways, or by obstruction of csf flow (e.g., obstructive hydrocephalus). (From Childs Nerv Syst 1992 Sep; 8(6):301-6)


Sodium Acetate

The trihydrate sodium salt of acetic acid, which is used as a source of sodium ions in solutions for dialysis and as a systemic and urinary alkalizer, diuretic, and expectorant.


Oxaliplatin

An organoplatinum complex in which the platinum atom is complexed with 1,2-diaminocyclohexane, and with an oxalate ligand which is displaced to yield active oxaliplatin derivatives. These derivatives form inter- and intra-strand DNA crosslinks that inhibit DNA replication and transcription. Oxaliplatin is an antineoplastic agent that is often administered with FLUOROURACIL and FOLINIC ACID in the treatment of metastatic COLORECTAL NEOPLASMS.

A platinum coordination entity that is a commonly used chemothrepeutic drug for treatment of colorectal cancer.


paronychia

An acute or chronic infection of the soft tissues around the nail. Symptoms include pain, tenderness, erythema, and swelling around the nail. Acute infection results from minor trauma to the fingertip and Staphylococcus aureus is usually the causative agent. Chronic infection is usually caused by Candida albicans.


Indacaterol

Indacaterol is a long-acting beta2-adrenergic agonist. The pharmacological effects of beta2-adrenoceptor agonist drugs, including indacaterol, are at least in part attributable to stimulation of intracellular adenyl cyclase, the enzyme that catalyzes the conversion of adenosine triphosphate (ATP) to cyclic-3’, 5’-adenosine monophosphate (cyclic monophosphate). Increased cyclic AMP levels cause relaxation of bronchial smooth muscle.

A monohydroxyquinoline that consists of 5-[(1R)-2-amino-1-hydroxyethyl]-8-hydroxyquinolin-2-one having a 5,6-diethylindan-2-yl group attached to the amino function. Used as the maleate salt for treatment of chronic obstructive pulmonary disease.


Lurasidone

The mechanism of action of lurasidone in the treatment of schizophrenia and bipolar depression is unclear. However, its efficacy in schizophrenia and bipolar depression could be mediated through a combination of central dopamine D2 and serotonin Type 2 (5HT2A) receptor antagonism.

An N-arylpiperazine that is (3aR,4S,7R,7aS)-2-{[(1R,2R)-2-(piperazin-1-ylmethyl)cyclohexyl]methyl}hexahydro-1H-4,7-methanoisoindole-1,3(2H)-dione in which position N4 of the piperazine ring is substituted by a 1,2-benzothiazol-3-yl group. Lurasidone is used (generally as the hydrochloride salt) as an atypical antipsychotic for the treatment of schizophrenia.


Increased body weight

Abnormally increased body weight.


Vemurafenib

Vemurafenib is a low molecular weight, orally available inhibitor of some mutated forms of BRAF serine- threonine kinase, including BRAF V600E. Vemurafenib also inhibits other kinases in vitro such as CRAF, ARAF, wild-type BRAF, SRMS, ACK1, MAP4K5, and FGR at similar concentrations. Some mutations in the BRAF gene including V600E result in constitutively activated BRAF proteins, which can cause cell proliferation in the absence of growth factors that would normally be required for proliferation. Vemurafenib has anti-tumor effects in cellular and animal models of melanomas with mutated BRAF V600E.

A pyrrolopyridine that is 1H-pyrrolo[2,3-b]pyridine which is substituted at position 5 by a p-chlorophenyl group and at positions 3 by a 3-amino-2,6-difluorobenzoyl group, the amino group of which has undergone formal condensation with propane-1-sulfonic acid to give the corresponding sulfonamide. An inhibitor of BRAF and other kinases.


Silver sulfadiazine

Antibacterial used topically in burn therapy.


Temsirolimus

Temsirolimus is an inhibitor of mTOR (mammalian target of rapamycin). Temsirolimus binds to an intracellular protein (FKBP-12), and the protein-drug complex inhibits the activity of mTOR that controls cell division. Inhibition of mTOR activity resulted in a G1 growth arrest in treated tumor cells. When mTOR was inhibited, its ability to phosphorylate p70S6k and S6 ribosomal protein, which are downstream of mTOR in the PI3 kinase/AKT pathway was blocked. In in vitro studies using renal cell carcinoma cell lines, temsirolimus inhibited the activity of mTOR and resulted in reduced levels of the hypoxia-inducible factors HIF-1 and HIF-2 alpha, and the vascular endothelial growth factor.


Calcium Chloride

A salt used to replenish calcium levels, as an acid-producing diuretic, and as an antidote for magnesium poisoning.


hyperkalemic periodic paralysis

Hyperkalemic periodic paralysis (HyperPP) is a muscle disorder characterized by episodic attacks of muscle weakness associated with an increase in serum potassium concentration.


Allantoin

A urea hydantoin that is found in URINE and PLANTS and is used in dermatological preparations.

An imidazolidine-2,4-dione that is 5-aminohydantoin in which a carbamoyl group is attached to the exocyclic nitrogen.


Pruritus

Pruritus is an itch or a sensation that makes a person want to scratch. This term refers to an abnormally increased disposition to experience pruritus.


Zinc Acetate

A salt produced by the reaction of zinc oxide with acetic acid and used as an astringent, styptic, and emetic.

An acetate salt in which the cationic component is zinc(2+).


Hyperchloremia

An abnormally increased chloride concentration in the blood.


dacryocystitis

Inflammation of the lacrimal sac.


Sodium monofluorophosphate

inhibits Phosphorylas phosphatase irreversibly; RN given refers to parent cpd

Sodium fluorophosphate, commonly abbreviated MFP, is an inorganic compound with the chemical formula Na2PO3F. Typical for a salt, MFP is odourless, colourless, and water-soluble. This salt is an ingredient in toothpastes.


Clobetasol Propionate

A derivative of PREDNISOLONE with high glucocorticoid activity and low mineralocorticoid activity. Absorbed through the skin faster than FLUOCINONIDE, it is used topically in treatment of PSORIASIS but may cause marked adrenocortical suppression.

The 17-O-propionate ester of clobetasol. A potent corticosteroid, it is used to treat various skin disorders, including exzema and psoriasis.


Striae distensae

Thinned, erythematous, depressed bands of atrophic skin. Initially, striae appear as flattened and thinned, pinkish linear regions of the skin. Striae tend to enlarge in length and become reddish or purplish. Later, striae tend to appear as white, depressed bands that are parallel to the lines of skin tension. Striae distensae occur most often in areas that have been subject to distension such as the lower back, buttocks, thighs, breast, abdomen, and shoulders.


Ferrous gluconate dihydrate

iron important in this cpd; RN given refers to ferrous cpd


Aurothioglucose

A thioglucose derivative used as an antirheumatic and experimentally to produce obesity in animals.


Ammonium Chloride

An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating.

An inorganic chloride having ammonium as the counterion.


acquired thrombocytopenia

An instance of thrombocytopenia that is acquired during the lifetime of the individual.


Calcium Phosphate

refers to unspecified salt; see other calcium phosphates


Testosterone cypionate

cypionate ester of the androgenic hormone testosterone


gynecomastia disorder

Development of breast tissue in males.


cardiac arrest

Cessation of breathing and/or cardiac function.


Magnesium Oxide

Magnesium oxide (MgO). An inorganic compound that occurs in nature as the mineral periclase. In aqueous media combines quickly with water to form magnesium hydroxide. It is used as an antacid and mild laxative and has many nonmedicinal uses.


Azilsartan medoxomil

an angiotensin type 1 receptor blocker; receptor blocker

A carboxylic ester obtained by formal condensation of the carboxy group of azilsartan with the hydroxy group of 4-(hydroxymethyl)-5-methyl-1,3-dioxol-2-one. A prodrug for azilsartan, it is used for treatment of hypertension.


hypophosphatemia

Lower than normal levels of phosphates in the circulating blood.


Magnesium Sulfate

A small colorless crystal used as an anticonvulsant, a cathartic, and an electrolyte replenisher in the treatment of pre-eclampsia and eclampsia. It causes direct inhibition of action potentials in myometrial muscle cells. Excitation and contraction are uncoupled, which decreases the frequency and force of contractions. (From AMA Drug Evaluations Annual, 1992, p1083)

A magnesium salt having sulfate as the counterion.


Hypoaldosteronism, Hyporeninemic

Hypoaldosteronism characterized by hyperkalemia and inappropriately low renin activity. This condition may be caused by a primary renal disorder, drugs or autoimmune processes.


Thomsen and Becker disease

A rare, genetic, skeletal muscle channelopathy characterized by slow muscle relaxation after contraction (myotonia).


Magnesium citrate

A magnesium salt composed of magnesium and citrate ions in a 3:2 ratio.


Calcium Acetate

a principal compound used as phosphate binders in patients with chronic renal failure; used like sevelamer

The calcium salt of acetic acid. It is used, commonly as a hydrate, to treat hyperphosphataemia (excess phosphate in the blood) in patients with kidney disease: the calcium ion combines with dietary phosphate to form (insoluble) calcium phosphate, which is excreted in the faeces.


Abnormal blood ion concentration

Abnormality of the homeostasis (concentration) of a monoatomic ion.


Potassium Bicarbonate

Approved by EMA in combination with potassium citrate.

A potassium salt that is the monopotassium salt of carbonic acid. It has fungicidal properties and is used in organic farming for the control of powdery mildew and apple scab.


Acarbose

An inhibitor of ALPHA-GLUCOSIDASES that retards the digestion and absorption of DIETARY CARBOHYDRATES in the SMALL INTESTINE.

A tetrasaccharide derivative consisting of a dideoxy-4-{[4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl C7 cyclitol moiety [called valienol (or valienamine)] linked via nitrogen to isomaltotriose.


Stercoral ulcer

An ulcer of the colon due to pressure and irritation from retained fecal masses.


Acetaminophen

Analgesic antipyretic derivative of acetanilide. It has weak anti-inflammatory properties and is used as a common analgesic, but may cause liver, blood cell, and kidney damage.

A member of the class of phenols that is 4-aminophenol in which one of the hydrogens attached to the amino group has been replaced by an acetyl group.


Acetophenazine

major descriptor (73-85); minor descriptor (64-72); on-line search PHENOTHIAZINES (64-85); Index Medicus search PHENOTHIAZINES (64-72); ACETOPHENAZINE (73-85); RN given refers to parent cpd

A member of the class of  phenothiazines that is 10H-phenothiazine substituted by a 3-[4-(2-hydroxyethyl)piperazin-1-yl]propyl group at the nitogen atom and an acetyl group at position 2.


Albendazole

A benzimidazole broad-spectrum anthelmintic structurally related to MEBENDAZOLE that is effective against many diseases. (From Martindale, The Extra Pharmacopoeia, 30th ed, p38)

A carbamate ester that is methyl 1H-benzimidazol-2-ylcarbamate substituted by a propylsulfanyl group at position 5. It is commonly used in the treatment of parasitic worm infestations.


priapism

Persistent and usually painful erection that lasts for at least four hours in the absence of physical or psychological stimulation, which can be caused by hematologic disorders, including sickle cell disease and leukemia, spinal cord injuries, and medications.


thrombocytosis disease

A disease characterized by higher than normal platelet counts in the peripheral blood.


Alfentanil

A short-acting opioid anesthetic and analgesic derivative of FENTANYL. It produces an early peak analgesic effect and fast recovery of consciousness. Alfentanil is effective as an anesthetic during surgery, for supplementation of analgesia during surgical procedures, and as an analgesic for critically ill patients.

A member of the class of piperidines that is piperidine having a 2-(4-ethyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethyl group at the 1-position as well as N-phenylpropanamido- and methoxymethyl groups at the 4-position.


Amiloride

A pyrazine compound inhibiting SODIUM reabsorption through SODIUM CHANNELS in renal EPITHELIAL CELLS. This inhibition creates a negative potential in the luminal membranes of principal cells, located in the distal convoluted tubule and collecting duct. Negative potential reduces secretion of potassium and hydrogen ions. Amiloride is used in conjunction with DIURETICS to spare POTASSIUM loss. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p705)

A member of the class of pyrazines resulting from the formal monoacylation of guanidine with the carboxy group of 3,5-diamino-6-chloropyrazine-2-carboxylic acid.


Anastrozole

A nitrile and triazole derivative that acts as a selective nonsteroidal aromatase inhibitor. It is used in the treatment of ESTROGEN NUCLEAR RECEPTOR-positive breast cancer in postmenopausal women.

A 1,2,4-triazole compound having a 3,5-bis(2-cyano-2-propyl)benzyl group at the 1-position.


Apomorphine

A derivative of morphine that is a dopamine D2 agonist. It is a powerful emetic and has been used for that effect in acute poisoning. It has also been used in the diagnosis and treatment of parkinsonism, but its adverse effects limit its use.


Amrinone

A positive inotropic cardiotonic (CARDIOTONIC AGENTS) with vasodilator properties, phosphodiesterase 3 inhibitory activity, and the ability to stimulate calcium ion influx into the cardiac cell.

A 3,4'-bipyridine substituted at positions 5 and 6 by an amino group and a keto function respectively. A pyridine phosphodiesterase 3 inhibitor, it is a drug that may improve the prognosis in patients with congestive heart failure.


Bacampicillin

ester prodrug that is hydrolyzed to ampicillin after its absorption from the gastrointestinal tract; RN given refers to parent cpd; structure

A penicillanic acid ester that is the 1-ethoxycarbonyloxyethyl ester of ampicillin. It is a semi-synthetic, microbiologically inactive prodrug of ampicillin.


gonorrhea

A common sexually transmitted bacterial infection caused by Neisseria gonorrhoeae. It is transmitted through vaginal, oral, or anal intercourse. Infected individuals may be asymptomatic. Symptoms in males include burning sensation during urination, discharge from the penis, and painful swelling of the testes. Symptoms in females include painful urination, vaginal discharge, and vaginal bleeding between periods. If untreated, the infection may lead to pelvic inflammatory disease.


pyruvate dehydrogenase E3 deficiency

Pyruvate dehydrogenase E3 deficiency is a very rare subtype of pyruvate dehydrogenase deficiency (PDHD) characterized by either early-onset lactic acidosis and delayed development, later-onset neurological dysfunction or liver disease.


Levobunolol

A cyclic ketone that is 3,4-dihydronaphthalen-1-one substituted at position 5 by a 3-(tert-butylamino)-2-hydroxypropoxy group (the S-enantiomer). A non-selective beta-adrenergic antagonist used (as its hydrochloride salt) for treatment of glaucoma.


Budesonide

A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.

A glucocorticoid steroid having a highly oxygenated pregna-1,4-diene structure. It is used mainly in the treatment of asthma and non-infectious rhinitis and for treatment and prevention of nasal polyposis.


Hypercapnia

Abnormally elevated blood carbon dioxide (CO2) level.


Candesartan cilexetil

a nonpeptide angiotensin II receptor antagonist


ophthalmia neonatorum

Inflammation of the conjunctiva in a newborn due to chemical or infectious causes. Aseptic conjunctivitis is often related to the use of prophylactic medications for infectious conjunctivitis. Septic conjunctivitis is related to perinatal exposure to microorganisms.


Fever of Unknown Origin

A febrile process with an etiology that is not apparent or yet determined.


acute gonococcal cervicitis

Acute form of gonococcal cervicitis.


Dimethyl Sulfoxide

A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during CRYOPRESERVATION. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.

A 2-carbon sulfoxide in which the sulfur atom has two methyl substituents.


lens disorder

A disease involving the lens of camera-type eye.


Digoxin

A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)

A  cardenolide glycoside that is digitoxin beta-hydroxylated at C-12. A cardiac glycoside extracted from the foxglove plant, Digitalis lanata, it is used to control ventricular rate in atrial fibrillation and in the management of congestive heart failure with atrial fibrillation, but the margin between toxic and therapeutic doses is small.


Doxylamine

Histamine H1 antagonist with pronounced sedative properties. It is used in allergies and as an antitussive, antiemetic, and hypnotic. Doxylamine has also been administered in veterinary applications and was formerly used in PARKINSONISM.


Doxercalciferol

decrease of bone density caused by prednisolone was prevented by above cpd; decreases number of osteoclast areas in normal rats; RN given refers to (1alpha,3beta,5Z,7E,22E)-isomer

A hydroxy seco-steroid and synthetic vitamin D2 analogue that undergoes metabolic activation in vivo to form 1alpha,25-dihydroxyvitamin D2 (1alpha,25-(OH)2D2), a naturally occurring, biologically active form of vitamin D2. It is used to treat secondary hyperparathyroidism, a condition in which the body produces excess parathyroid hormone (PTH; a natural substance needed to control the amount of calcium in the blood) in certain people with chronic kidney disease.


Decreased circulating copper concentration

A reduced concentration of copper in the blood.


Diphenylpyraline

an antihistamine used to treat allergic rhinitis, hay fever, and allergic skin disorders, diphenylpyraline blocks the action of endogenous histamine at the histamine H1 receptor

A member of the class of  piperidines that is the benzhydryl ether derivative of 1-methyl-4-hydroxypiperidine. A sedating antihistamine, it is used as the hydrochloride for the symptomatic relief of allergic conditions including rhinitis and hay fever, and in pruritic skin disorders. It is also used as the teoclate salt (piprinhydrinate) as an ingredient in compound preparations for the symptomatic relief of coughs and the common cold.


Efavirenz

Efavirenz is a non-nucleoside reverse transcriptase (RT) inhibitor of HIV-1. Efavirenz activity is mediated predominantly by noncompetitive inhibition of HIV-1 reverse transcriptase. HIV-2 RT and human cellular DNA polymerases alpha, beta, gamma, and delta are not inhibited by efavirenz.

1,4-Dihydro-2H-3,1-benzoxazin-2-one substituted at the 4 position by cyclopropylethynyl and trifluoromethyl groups (S configuration) and at the 6 position by chlorine. A non-nucleoside reverse transcriptase inhibitor with activity against HIV, it is used with other antiretrovirals for combination therapy of HIV infection.


Mania

A state of abnormally elevated or irritable mood, arousal, and/or energy levels.


Epirubicin

An anthracycline which is the 4'-epi-isomer of doxorubicin. The compound exerts its antitumor effects by interference with the synthesis and function of DNA.

An anthracycline that is the 4'-epi-isomer of doxorubicin.


toxic megacolon

An acute form of megacolon, severe pathological dilatation of the colon. It is associated with clinical conditions such as ulcerative colitis; crohn disease; amebic dysentery; or clostridium enterocolitis.


Felodipine

A dihydropyridine calcium antagonist with positive inotropic effects. It lowers blood pressure by reducing peripheral vascular resistance through a highly selective action on smooth muscle in arteriolar resistance vessels.

The mixed (methyl, ethyl) diester of 4-(2,3-dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid. A calcium-channel blocker, it lowers blood pressure by reducing peripheral vascular resistance through a highly selective action on smooth muscle in arteriolar resistance vessels. It is used in the management of hypertension and angina pectoris.


thrombophlebitis

Inflammation of the veins associated with the presence of a thrombus.


D-Glucosamine

A D-glucosamine whose structure comprises D-glucopyranose having an amino substituent at position 2.


Halobetasol propionate

used in ointment to treat psoriasis; Ulobetasol cream contains 0.05% 6-fluoroclobetasol 17-propionate


granuloma annulare

Granuloma annulare is a long-term (chronic) skin disease consisting of a rash with reddish bumps arranged in a circle or ring. The most commonly affected areas are the forearms, hands and feet. The lesions associated with granuloma annulare usually resolve without treatment. Strong steroids (applied as a cream or injection) are sometimes used to clear the rash more quickly. Most symptoms will disappear within 2 years (even without treatment), but recurrence is common. The underlying cause of granuloma annulare is unknown.


Haloprogin

minor descriptor (73-86); on-line & INDEX MEDICUS search PHENYL ETHERS (73-86)


Azotemia

An increased concentration of nitrogen compounds in the blood.


Hydroflumethiazide

A thiazide diuretic with actions and uses similar to those of HYDROCHLOROTHIAZIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p822)

A benzothiadiazine consisting of a 3,4-dihydro-HH-1,2,4-benzothiadiazine bicyclic system dioxygenated on sulfur and carrying trifluoromethyl and aminosulfonyl groups at positions 6 and 7 respectively. A diuretic with actions and uses similar to those of hydrochlorothiazide.


Ketamine

A cyclohexanone derivative used for induction of anesthesia. Its mechanism of action is not well understood, but ketamine can block NMDA receptors (RECEPTORS, N-METHYL-D-ASPARTATE) and may interact with sigma receptors.

A member of the class of cyclohexanones in which one of the hydrogens at position 2 is substituted by a 2-chlorophenyl group, while the other is substituted by a methylamino group.


obsessive-compulsive disorder

A disorder characterized by the presence of persistent and recurrent irrational thoughts (obsessions), resulting in marked anxiety and repetitive excessive behaviors (compulsions) as a way to try to decrease that anxiety.


Irbesartan

A spiro compound, biphenyl and tetrazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION, and in the treatment of kidney disease.

A  biphenylyltetrazole that is an angiotensin II receptor antagonist used mainly for the treatment of hypertension.


connective tissue disorder

A disease involving the connective tissue.


Ixabepilone

Ixabepilone is a semi-synthetic analog of epothilone B. Ixabepilone binds directly to beta-tubulin subunits on microtubules, leading to suppression of microtubule dynamics. Ixabepilone suppresses the dynamic instability of alphaBeta-II and alphaBeta-III microtubules. Ixabepilone possesses low in vitro susceptibility to multiple tumor resistance mechanisms including efflux transporters, such as MRP-1 and P-glycoprotein (P-gp). Ixabepilone blocks cells in the mitotic phase of the cell division cycle, leading to cell death.

A macrocycle that is a lactam analogue of epothilone B. Binds directly to beta-tubulin subunits on microtubules, leading to suppression of microtubule dynamics.


Rhabdomyolysis

Breakdown of muscle fibers that leads to the release of muscle fiber contents (myoglobin) into the bloodstream.


Felbamate

A PEGylated phenylcarbamate derivative that acts as an antagonist of NMDA RECEPTORS. It is used as an anticonvulsant, primarily for the treatment of SEIZURES in severe refractory EPILEPSY.

The bis(carbamate ester) of 2-phenylpropane-1,3-diol. An anticonvulsant, it is used in the treatment of epilepsy.


typhus

A group of infectious diseases that include epidemic typhus, scrub typhus and murine typhus.


pharyngitis

Inflammation of the throat most often caused by viral and bacterial infections. Other causes include allergens, chemical substances, and trauma.


Furosemide

A benzoic-sulfonamide-furan. It is a diuretic with fast onset and short duration that is used for EDEMA and chronic RENAL INSUFFICIENCY.

A  chlorobenzoic acid that is 4-chlorobenzoic acid substituted by a (furan-2-ylmethyl)amino and a sulfamoyl group at position 2 and 5 respectively. It is a diuretic used in the treatment of congestive heart failure.


Fosamprenavir

a prodrug of the protease inhibitor amprenavir

A sulfonamide with a structure based on that of sulfanilamide substituted on the sulfonamide nitrogen by a (2R,3S)-4-phenyl-2-(phosphonooxy)-3-({[(3S)-tetrahydrofuran-3-yloxy]carbonyl}amino)butyl group. It is a pro-drug of the HIV protease inhibitor and antiretroviral drug amprenavir.


Flurazepam

A benzodiazepine derivative used mainly as a hypnotic.

A 1,4-benzodiazepinone that is 1,3-dihydro-2H-1,4-benzodiazepin-2-one substituted by a 2-(diethylamino)ethyl group, 2-fluorophenyl group and chloro group at positions 1, 5 and 7, respectively. It is a partial agonist of GABAA receptors and used for the treatment of insomnia.


geniculate herpes zoster

A viral ear infection caused by the spread of varicella-zoster virus to the facial nerves. It is characterized by intense otalgia and a cutaneous vesicular eruption.


Cilastatin

A renal dehydropeptidase-I and leukotriene D4 dipeptidase inhibitor. Since the antibiotic, IMIPENEM, is hydrolyzed by dehydropeptidase-I, which resides in the brush border of the renal tubule, cilastatin is administered with imipenem to increase its effectiveness. The drug also inhibits the metabolism of leukotriene D4 to leukotriene E4.

The thioether resulting from the formal oxidative coupling of the thiol group of L-cysteine with the 7-position of (2Z)-2-({[(1S)-2,2-dimethylcyclopropyl]carbonyl}amino)hept-2-enoic acid. It is an inhibitor of dehydropeptidase I (membrane dipeptidase, 3.4.13.19), an enzyme found in the brush border of renal tubes and responsible for degrading the antibiotic imipenem. Cilastatin is therefore administered (as the sodium salt) with  imipenem to prolong the antibacterial effect of the latter by preventing its renal metabolism to inactive and potentially nephrotoxic products. Cilastatin also acts as a leukotriene D4 dipeptidase inhibitor, preventing the metabolism of leukotriene D4 to leukotriene E4.


anthrax infection

An infection caused by Bacillus anthracis bacteria. It may affect the lungs, gastrointestinal tract, or skin. Patients with lung infection present with fever, headaches, cough, chest pain and shortness of breath. Patients with gastrointestinal infection present with nausea, vomiting and bloody diarrhea. Patients with skin infection develop blisters and ulcers.


gastrointestinal anthrax

An anthrax disease that results in infection located in mucosa of gastrointestinal tract, has material basis in Bacillus anthracis, which is transmitted by ingestion of anthrax-infected meat. The infection has symptom lesions, has symptom vomiting of blood, has symptom severe diarrhea, has symptom loss of appetite.


babesiosis

Babesiosis refers to a condition caused by microscopic parasites that infect the red blood cells. Many people who are infected with Babesia parasites do not experience any symptoms of the condition. When present, signs and symptoms may include flu-like symptoms such as fever, chills, headache, body aches, nausea and fatigue. In severe cases, babesiosis can be associated with hemolytic anemia. Babesia parasites are primarily spread by infected ticks. Treatment is generally only required in people who develop symptoms of the condition. When necessary, affected people are often prescribed a combination of antimicrobial medications along with supportive care to manage symptoms.


Clevidipine

a calcium channel blocker and antihypertensive agent


Cisapride

A substituted benzamide used for its prokinetic properties. It is used in the management of gastroesophageal reflux disease, functional dyspepsia, and other disorders associated with impaired gastrointestinal motility. (Martindale The Extra Pharmacopoeia, 31st ed)


Citalopram

A furancarbonitrile that is one of the serotonin uptake inhibitors used as an antidepressant. The drug is also effective in reducing ethanol uptake in alcoholics and is used in depressed patients who also suffer from TARDIVE DYSKINESIA in preference to tricyclic antidepressants, which aggravate dyskinesia.

A racemate comprising equimolar amounts of (R)-citalopram and its enantiomer,  escitalopram. It is used as an antidepressant, although only escitalopram is active.


Respiratory insufficiency

Impairment of gas exchange within the lungs secondary to a disease process, neoplasm, or trauma, possibly resulting in hypoxia, hypercarbia, or both, but not requiring intubation or mechanical ventilation. Patients are normally managed with pharmaceutical therapy, supplemental oxygen, or both.


Colchicine

A major alkaloid from Colchicum autumnale L. and found also in other Colchicum species. Its primary therapeutic use is in the treatment of gout, but it has been used also in the therapy of familial Mediterranean fever (PERIODIC DISEASE). Potential to limit COVID-19-related myocardial damage has been hypothesized based on the drug’s mechanisms of action and promising results of ongoing research on colchicine in various cardiac conditions. However, the drug's safety and efficacy for treatment of COVID-19 is not yet established.

A colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions.


Cysteamine

A mercaptoethylamine compound that is endogenously derived from the COENZYME A degradative pathway. The fact that cysteamine is readily transported into LYSOSOMES where it reacts with CYSTINE to form cysteine-cysteamine disulfide and CYSTEINE has led to its use in CYSTINE DEPLETING AGENTS for the treatment of CYSTINOSIS.

An amine that consists of an ethane skeleton substituted with a thiol group at C-1 and an amino group at C-2.


diabetes insipidus

A disorder characterized by excretion of large amounts of urine, accompanied by excessive thirst. Causes include deficiency of antidiuretic hormone or failure of the kidneys to respond to antidiuretic hormone. It may also be drug-related.


Dapsone

A sulfone active against a wide range of bacteria but mainly employed for its actions against MYCOBACTERIUM LEPRAE. Its mechanism of action is probably similar to that of the SULFONAMIDES which involves inhibition of folic acid synthesis in susceptible organisms. It is also used with PYRIMETHAMINE in the treatment of malaria. (From Martindale, The Extra Pharmacopoeia, 30th ed, p157-8)

A  sulfone that is diphenylsulfone in which the hydrogen atom at the 4 position of each of the phenyl groups is substituted by an amino group. It is active against a wide  range of bacteria, but is mainly employed for its actions against Mycobacterium leprae, being used as part of multidrug regimens in the treatment of all forms of leprosy.


dermatitis herpetiformis

Dermatitis herpetiformis (DH) is a chronic autoimmune subepidermal bullous disease characterized by grouped pruritic lesions such as papules, urticarial plaques, erythema, and herpetiform vesiculae, with a predominantly symmetrical distribution on extensor surfaces of the elbows (90%), knees (30%), shoulders, buttocks, sacral region, and face of children and adults. Erosions, excoriations and hyperpigmentation usually follow. DH may also appear as a consequence of gluten intolerance.


arteriosclerosis disorder

A vascular disorder characterized by thickening and hardening of the walls of the arteries.


Rifaximin

Rifaximin is a semi-synthetic derivative of rifampin and acts by binding to the beta-subunit of bacterial DNA-dependent RNA polymerase blocking one of the steps in transcription. This results in inhibition of bacterial protein synthesis and consequently inhibits the growth of bacteria.

A semisynthetic member of the class of rifamycins and non-systemic gastrointestinal site-specific broad spectrum antibiotic. Used in the treatment of traveller's diarrhoea, hepatic encephalopathy and irritable bowel syndrome.


Ranitidine

A non-imidazole blocker of those histamine receptors that mediate gastric secretion (H2 receptors). It is used to treat gastrointestinal ulcers.


lactic acidosis

Metabolic acidosis characterized by the accumulation of lactate in the body. It is caused by tissue hypoxia.


Secobarbital

A barbiturate that is used as a sedative. Secobarbital is reported to have no anti-anxiety activity.

A member of the class of  barbiturates that is barbituric acid in which the hydrogens at position 5 are substituted by prop-2-en-1-yl and pentan-2-yl groups.


Sildenafil

A PHOSPHODIESTERASE TYPE-5 INHIBITOR; VASODILATOR AGENT and UROLOGICAL AGENT  that is used in the treatment of ERECTILE DYSFUNCTION and PRIMARY PULMONARY HYPERTENSION.

A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position.


Sertraline

A selective serotonin uptake inhibitor that is used in the treatment of depression.

A member of the class of tetralins that is tetralin which is substituted at positions 1 and 4 by a methylamino and a 3,4-dichlorophenyl group, respectively (the S,S diastereoisomer). A selective serotonin-reuptake inhibitor (SSRI), it is administered orally as the hydrochloride salt as an antidepressant for the treatment of depression, obsessive-compulsive disorder, panic disorder and post-traumatic stress disorder.