<prompt> Drugs indicated in drug induced vomiting are all except: March 2012MetoclopramideHyoscineOndansteronChlorpromazine  <response>: Ans: B i.e. Hyoscine Anti-emetic drugs Metoclopramide is an effective and popular drug for many types of vomiting - postoperative, drug induced, disease associated migraine, radiation sickness, etc. Hyoscine is the most effective antiemetic drug for motion sickness and is not effective in vomiting of other etiologies Ondansetron belongs to a new class of antiemetic drugs developed to control cancer chemotherapyradiotherapy induced vomiting Neurolepticsantipsychotics have broad spectrum antiemetic action effective in drug induced and post-anaesthetic nausea and vomiting etc. 