Which of the following drug induces parkinsonism ?
Correct answer: B. Chlorpromazine
- A. Chlorpheniramine
- B. Chlorpromazine
- C. Chloroquine
- D. Chlorhexidine
Explanation
Chlorpromazine blocks dopamine D2 receptors in the nigrostriatal pathway, producing extrapyramidal effects such as drug-induced parkinsonism. The other listed drugs do not characteristically cause this syndrome.
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