This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Drug used for drug induced parkinsonism 
Select and explain. 
A. Levodopa, B. Carbidopa, C. Benzhexol, D. Amantidine
C: Benzhexol
Answer: C: Benzhexol 
Explanation: Sodium valproate, used to treat epilepsy, and lithium, used in depression, both commonly cause tremor which may be mistaken for Parkinson's. Some repos have linked SSRI antidepressant drugs such as fluoxetine (Prozac) to drug-induced parkinsonism but hard evidence of causeand effect is unsubstantiated. Ref: KD T ripathi 8th ed.