This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal tract, Subject name: Pharmacology
[{'content': 'Most specific antiemetic for Chemotherapy induced vomiting is \nSelect and explain. \nA. Domperidone, B. Granisetron, C. Tegaserod, D. Doxylamine', 'role': 'user'}, {'content': "Answer: B \nExplanation: 5HT3 Antagonists *5HT3 antagonists like Ondansetron, Granisetron, Dolasetron, Tropisetron and Palanosetron are the most specific and effective agents in the management of chemotherapy-induced nausea vomiting and in nausea associated with upper abdominal irradiation. Ref:- Goodman & Gilman's Pharmacological basis of Therapeutics 13th Ed; Pg.No:- 935-6", 'role': 'assistant'}]