<prompt> Pimozide belongs to class of:ThiothixanthenePhenothiazineButyrophenoneDiphenyl butyl piperidine  <response>: Thioxanthenes are flupenthioxol. Butyrophenones are haloperidol, trifluperidol , penfluridol. Phenothiazines are Chlorpromazine, triflupromazine , thioridazine, flufenazine. Promazine belongs to the group of other of other hetero cyclics that is diphenyl butyl piperidine. Ref: KD Tripathi 8th ed. 