erectile dysfunction
"I'm 66 and on a fixed income so Viagra is, for the most part, out of the question at almost $40 a pill. There is no generic here in the US so i got curious and looked up Viagra on a few of the Rx websites. The one common thread in all the descriptions of Viagra was that the active ingredient is sildenafil. I ran to the urologist's office and got a script for sildenafil. Even he wasn't sure it was the active ingredient in Viagra. Well, to say the least, my wife is now two very happy women. I reported the results back to my urologist and he thanked me and said he would be suggesting it to all his patients who are taking Viagra."