What is "iomazenil"

n. An antagonist and partial inverse agonist of benzodiazepine and a potential treatment for alcohol abuse.

Iomazenil (also known as Ro16-0154, INN, USAN; benzodine) is an antagonist and partial inverse agonist of benzodiazepine and a potential treatment for alcohol abuse. The compound was introduced in 1989 by pharmaceutical company Hoffmann-La Roche as an Iodine-123-labelled SPECT tracer for imaging benzodiazepine receptors ( GABA receptors) in the brain. Iomazenil is an analogue of flumazenil (Ro15-1788).