This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Opioids, Subject name: Pharmacology
All of the following can be used to treat alcohol dependence except: 
Select and explain. 
A. Naltrexone, B. Acamprosate, C. Flumazenil, D. Disulfiram
C: Flumazenil
Answer: C: Flumazenil 
Explanation: Ans. (C) Flumazenil(Ref: Katzung, 11/e p395; Goodman and Gilman, 11/e p383- 384; KDT 8/e p 421, 435)Flumazenil is a benzodiazepine antagonist used for treat of benzodiazepine overdose and not for alcohol dependence.