Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Ocinaplon is an anxiolytic drug in the pyrazolopyrimidine family of drugs. Other pyrazolopyrimidine drugs include zaleplon and indiplon. Ocinaplon has a similar pharmacological profile to the benzodiazepine family of drugs, but with mainly anxiolytic properties and relatively little sedative or amnestic effect. The mechanism of action by which ocinaplon produces its anxiolytic effects is by modulating GABAA receptors, although ocinaplon is more subtype-selective than most benzodiazepines.Development of ocinaplon is discontinued due to liver complications that occurred in one of the Phase III subjects. However new compounds are under preclinical pipeline.