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: Psychiatry
Antipsychotic drug with prolonged action 
Select and explain. 
A. Trifluperazine, B. Thioridazine, C. Penfluridol, D. Fluphenazine
D: Fluphenazine
Answer: D: Fluphenazine 
Explanation: D i.e. Fluphenazine