Hi welcome to Healthcaremagic
Hi muniswamy.., The prolong intake of the AntiHypertensive can result in impotence
as side effect..,
your anti hypertensives need to be altered, but since you are having heat disease, any chnage in treatment can alter the B.P can precipitate attack.. hence only way is you need to be confident, try to have arousal with out altering any medicines.
Hope I have answered your question..