<prompt> Inverse agonist is -Buspironeb-carbolineFlumazenilZolpidem  <response>: Ans. is b i.e., b-carboline Drugs acting at BZD site of GABAA receptors o Agonist at BZD site of GABAA receptor -4 Benzodiazepine, Zolpidem, Zopiclone, Zoleplon. o Inverse agonist at BZD site of GABAA receptor -- b-carboline o Competitive antagonist at BZD site of GABAA receptor --- Flumazenil 