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
All are an anti-craving agent for alcohol except - 
Select and explain. 
A. Lorazepam, B. Naltrexone, C. Topiramate, D. Acamprosate
A: Lorazepam
Answer: A: Lorazepam 
Explanation: Treatment of alcohol dependence

Detoxification (treatment of withdrawal) BZDs are the drugs of choice, e.g. chlordiazepoxide (1st choice), Diazepam (2"d choice).
Maintenance after detoxification (to prevent relapse and maintenance of abstinence):-


Aversive agents (deferent agents):- Disulfiram, CCC, metronidazole, Natrafezole.
Anticraving agent:- Naltrexone, Acamprosate, fluoxetine, Topiramate, Nalmefene.