Ciclindole
![](/Images/godic/202501/07/Ciclindole0509.png")
![Cyclindole synthesis: Aram Mooradian; Sterling Drug Inc. U.S. Patent 3,959,309](/Images/godic/202501/07/Cyclindole_synthesis0509.png")
Ciclindole (INN; WIN-27,147-2), also known as cyclindole (USAN), is an antipsychotic with a tricyclic structure that was never marketed. It displaces spiperone binding in vitro and elevates dopamine levels in the striatum, indicating it acts as a D2 receptor antagonist.