What is an “atypical”?
The Carlat Psychiatry Report, Volume 4, Number 2, February 2006
Following the introduction of the first neuroleptics in the 1950s, pharmaceutical companies continued screening compounds for psychoactive properties. In 1959, at Wander Laboratories (ultimately purchased by Sandoz), researchers were surprised to discover a chemical similar to tricyclic antidepressants that had antipsychotic properties. They named it clozapine.