trospium
trospium
A carboxylic ester resulting from the formal condensation of the carboxy group of hydroxy(diphenyl)acetic acid with the hydroxy group of (1<i>S</i>,3<i>R</i>,5<i>R</i>)-3-hydroxy-8λ<small><sup>5</small></sup>-azaspiro[bicyclo[3.2.1]octane-8,1'-pyrrolidin]-8-ylium. Its chloride salt is used to treat overactive bladder.