I begun taking Cialis two weeks ago. On the third day I achieved a strong erection, my really hard erection within more than ten years since I had open heart surgery. I tried another Cialis on the forth day and but nothing happened. Then on the day 6, I swallowed another pill and suddenly I was like in my 16`s. Get hard if the wind blows. My wife and me were very happy and felt like our life has been suddenly changed for the better!