I have been using Viagra sucessfully for about 4 years . Over the past year I have begun taking metformin for a diabitis diagnosis back in 2011 . I also take enalapril ( 5mg) once a day for blood preassure for the past year .  About 6 onths ago I began having difficulty witChatDoctorpleating sexual activity (ejaculating) and over the past week have not been able to acheive an errection at all using Viagra 100mg .  I heard that slower acting Cialis might be a more appropiate medication for me  ?
HelloThanks for query. You are facing problem of Erectile Dysfunction since 4 years and have been taking Viagra 100 mg as on demand.However, you are unable to get the same desirable effect since very recently which you think it to be due to Earl anti-diabetic and ORL antihypertensive Chat Doctor. Ideally diabetes and hypertension per Se are two major important conditions that contribute to have Erectile Dysfunction. You need to investigate further by doing color Doppler Scan of the Penis to rule out or confirm that problem of your Ed is not due to vasculogenic in origin (Either arterial insufficiency or Venous leak). As regards taking Calls on daily basis it has more potent action compared to Viagra. You mat try 5 mg of Calls daily along with 10-20 mg of Calls prior to planned sexual activities.