erectile dysfunction
"I am 59 and have been using Viagra 50mg for a few years now.  When I first started taking it, I got quite a bit of blue vision, some mild headache, and stuffy nose.  I've been cutting my 50's in half and take them about 30-60 min before sex.  From the get-go, I have always had nice hard erections that lasted plenty.  Here is what I found can weaken the effect of Viagra: 1) fatty foods - do NOT eat a big greasy burger and then take Viagra expecting a big one...  2) alcohol - I can have a few beers spread over the evening, but any more than that and it lessens the effect, or doesn't last as long as it would normally.  My insurance covers my prescription for only $20, but I only get 6 pills /mo, 18/90day, so I'm going to 100's, still cut them."