This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pharmacology
[{'content': 'All of the following are indicated in drug induced vomiting EXCEPT: \nSelect and explain. \nA. Ondansetron, B. Metoclopramide, C. Hyoscine, D. Chlorpromazine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref: KD Tripathi, 6th ed. pg. 641, 642, 644, 646HYOSINE* It is the most effective drug for motion sickness.* Suitable only for short brisk journeys.* It acts by blocking conduction of nerve impulses in the pathway leading from the vestibular apparatus to the vomiting centre and is not effective in vomiting of other etiologies.ONDANSETRON* It is considered as the drug of choice for drug induced vomiting.* Used mainly to control cancer chemotherapy induced vomiting.* Effective in postoperative nausea and vomiting as well.METOCLOPRAMIDE* It is an effective and popular drug for many types of vomiting like: Postoperative, drug induced, disease associated (especially migraine), radiation sickness, etc.CHLORPROMAZINE* These are from typical antipsychotic having potent antiemetic action; act by blocking D2 receptors in the CTZ.* They have broad spectrum antiemetic action effective in:# Drug induced and post anaesthetic nausea and vomiting# Disease induced vomiting# Malignancy associated and cancer chemotherapy induced vomiting# Radiation sickness vomiting and morning sickness.', 'role': 'assistant'}]