This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'All of the following are side effects of Quinine except: \nSelect and explain. \nA. QT prolongation, B. Tinnitus, C. Teratogenicity, D. Hypoglycemia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Quinine blocks K+\xa0channels and can lead to QT prolongation.\nIt can also increase Insulin secretion and causes hypoglycemia.\nIt is a Cinchona compound that can lead to tinnitus and vertigo.\nIt is not teratogenic\xa0and hence can be used in pregnancy.', 'role': 'assistant'}]