What is "revospirone"

n. A selective 5-HT1A receptor partial agonist of the azapirone class.

Revospirone (Bay Vq 7813) is an azapirone drug which was patented as a veterinary tranquilizer but was never marketed. It acts as a selective 5-HT receptor partial agonist. Similarly to other azapirones such as buspirone, revospirone produces 1-(2-pyrimidinyl)piperazine (1-PP) as an active metabolite. As a result, it also acts as an α-adrenergic receptor antagonist to an extent.