Prazitone (, ; developmental code name AGN-511) is a barbiturate derivative described as an antidepressant which was developed in the 1960s. Unlike most barbiturates, it has little or no sedative effects, instead acting as a non-sedating anxiolytic and antidepressant. The dosage range in humans is around 200–600 mg, although higher doses have been used in trials for the treatment of depression associated with Parkinson's disease.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).