Hi Sir, Welcome to Health Care Magic I can certainly understand your concern It s definitely curable problem...There are many ways to get rid of this problem...like... Getting relaxed before sex, avoid stress, try to avoid smoking and alcohol if any , maintain healthy life style...In addition needs to maintain adequate weight which is ok in your case...I would advise you to start on sildenafil...to maintain the production of nitric oxide ie NO Which helps in sustaining erection of penis. It is helpful to consult psychiatrist for reassurance and other therapeutical measures.Duralast tablets would definitely help you to sustain erection and prevent premature ejaculation, and there is nothing to worry about its side effects such as nausea , vomiting, burning sensation in Stomach, which are rare and present with any drug and you can continue clobazam for epilepsy as it doesn t affect sexual function Post your further questions if any, I will available to take up your follow up questions Thank you