FG-7142 (ZK-31906) is a drug of the ò-carboline family which acts as a partial inverse agonist at the benzodiazepine allosteric site of the GABA<sub>A</sub> receptor. It has anorectic, anxiogenic and pro-convulsant effects. It also increases release of acetylcholine and noradrenaline, and improves memory retention in animal studies.