This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Amongst the following, extrapyramidal side effect is commonest with which drug : September 2006 
Select and explain. 
A. Thioradizine, B. haloperidol, C. Clozapine, D. Ziprasidone
B: haloperidol
Answer: B: haloperidol 
Explanation: Ans. B: Haloperidol Extrapyramidal disturbances are the major dose limiting side effects of neuroleptics; more prominent with high potency drugs like fluphenazine, haloperidol, pimozide etc., least with thioridazine, clozapine, and all other atypical antipsychotics, except high doses of risperidone.