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
Drug used to treat extrapyramidal syndrome due to phenothiazines: 
Select and explain. 
A. Diphenhydramine, B. Benzhexol, C. Clonidine, D. Promethazine
B: Benzhexol
Answer: B: Benzhexol 
Explanation: None