Drugs causing parkinsonism include A. Bromocriptine
B. Phenothiazine
C. Haloperidol
D. Amantadine
E. Carbidopa
B. Phenothiazine
C. Haloperidol
D. Amantadine
E. Carbidopa
Ans. B. Phenothiazine; (C) Haloperidol:
• Phenothiazine and Haloperidol causes
parkinsonism due to dopamine blockade. All antipsychotics except clozapine have potent— dopamine D2
receptor blocking action.
• Bromocriptine, amantidine and carbidopa are used in treatment of parkinsonism
