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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A young man has H/O of breathlessness while walking to gym. On examination he has ejection murmur which increase on Valsalva manouvcr. ECO shows LVH with deep Q wave In anterior chest leads. He should avoid
assistant
The correct answer is  Ref :Harrison&;s 19th E pg 1568. cardiac glycosides should be avoided, as they may increase contractility and worsen obstruction.