Hello Thanks for posting your query First of all I would like to know why you developed hypertension at the age of 24 years. Has you worked up for causes of increased blood pressure in young age especially renal artery stenosis (blockage of artery supplying kidney) by renal Doppler study because it is the correctable cause and BP can be normal if renal artery stenosis causing high blood pressure AT means Atenolol a beta blocker known to cause erectile dysfunction in male, should be voided in young male. There are many alternative drugs can be taken with consultation of doctor eg losartan, telmisartan, thiazide etc Hope this answers your query.Wishing you good health.