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
High-Yield Explanation
Ref :Harrison&;s 19th E pg 1568. cardiac glycosides should be avoided, as they may increase contractility and worsen obstruction.