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
Which among the following is contraindicated in a myasthenic patient ? 
Select and explain. 
A. Aminoglycosides, B. Sulphonamides, C. Penicillin, D. All
A: Aminoglycosides
Answer: A: Aminoglycosides 
Explanation: None