chloramphenicol(in) + H(+)(out) => chloramphenicol(out) + H(+)(in)
chloramphenicol(in) + h(+)(out) => chloramphenicol(out) + h(+)(in)
chloramphenicol(in) + H(+)(out) => chloramphenicol(out) + H(+)(in)
chloramphenicol(in) + h(+)(out) => chloramphenicol(out) + h(+)(in)