Inverse agonist of benzodiazepine receptor is:: (A) Phenobarbitone, (B) Flumazenil, (C) Beta carboline, (D) Gabapentin
Answer is C. Flumazenil is competitive BZD - antagonist ,while dimethoxyethyl-carbomethoxy-b caboline (DMCM) which is a BZD inverse agonist inhibits GABA action & are rare convulsant. Ref: KD Tripathi 8th ed.