This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'The least extrapyramidal side effects are seen with which of the following phenothiazine? \nSelect and explain. \nA. Clozapine, B. Triflupromazine, C. Fluphenazine, D. Thioridazine', 'role': 'user'}, {'content': "Answer: D \nExplanation: Side effects of impoant CNS drugs Midazolam Ataxia, Blackouts in elderlyTolcapone Hepatotoxic Phenytoin Hirsuitism , Gingival hyperplasia , Osteomalacia , Teratogen , Megaloblastic anemia , Ataxia, Lymphadenopathy, Hyperglycemia , Arrhythmias, Vitamin K deficiency Valproate Irreversible hepatic necrosis in older children, Acute pancreatitis Zonisamide,, Topiramate Renal stones VigabatrineIrreversible visual field defectsFelbamate Aplastic anemia Thioridazine Male sexual dysfunction, Retinal damage, Least extra pyramidal symptomsClozapine Agranulocytosis , Myocarditis Risperidone Extra pyramidal symptoms HaloperidolExtra pyramidal symptoms , Akathisia Olanzapine Risk of stroke and death Ziprasidone , Pimozide QT prolongation Quetiapine Cataract Iloperidone Ohostatic hypotension Lithium in expectant mothers Ebstein's anomalyFormic acid Retinal damage Opioids Tolerance & addiction (Refer: Rang and Dale's Clinical Pharmacology, 7th edition, pg no: 557-559)", 'role': 'assistant'}]