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
All of the following statements about flumazenil are true except: 
Select and explain. 
A. It is a specific antagonist of benzodiazepines, B. It may be used to treat barbiturate poisoning, C. It is given intravenously, D. It acts on same site on GABA channel where benzo diazepines bind
B: It may be used to treat barbiturate poisoning
Answer: B: It may be used to treat barbiturate poisoning 
Explanation: Uses of flumazenil - reverse BZD anaesthesia, BZD overdose,its mechanism of action is on GABA channel where BZD binds . There is no specific antidote for barbiturates. Ref: KDTripathi 8th ed.