<s>[INST] Dear Doctor, i am 41 year old man, i am weak in sex and i think i cant fulfilled formaltiies of my wife, i had use number of medicines but result is not good, can you help me, my problem is that when i go to wife but after some one of two minutes i discharge my organ is not hard, kindly advise me, i pray for your long life. [/INST] Hi thanks for contacting Chat Doctor.... You are not able to maintain erection... If you have habit of smoking and alcohol then avoid it as they can lead erectile dysfunction..... If you are overweight then lose weight ... Diabetis by RBS and hypertension by measuring blood pressure ruled out .... Your rectal examination done for rule out prostate enlargement .... Avoid stress mainly ..... Relax during sex.... Do foreplay more .... Regular exercise .... Take healthy diet .... The common problem is vascular disturbance of flow or neurological... Sildenafil is phosphodiesterase inhibitor Chat Doctor. . You can take sex therapy session for your problem. Consult psychiatrist for it..... Take care ..... </s>