This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'Which among the following is contraindicated in Myasthenia patient \nSelect and explain. \nA. Aminoglycosides, B. Sulfonamides, C. Penicillin, D. All the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Refer kDT 6/e p 722 Aminoglycoside can result in neuromuscular blockade that can aggravate Myasthenia gravis', 'role': 'assistant'}]