Pimozide belongs to class of:: (A) Thiothixanthene, (B) Phenothiazine, (C) Butyrophenone, (D) Diphenyl butyl piperidine
Answer is D. 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.