erectile dysfunction
"I have to take Levitra with dinner and it will work at 11:00 and through the night. Any earlier than 4-5 hours wait and I get a strong erection, but it fizzles out during sex. Still have moments of failure, but these can almost always be attributed to some external event or other. I am very happy with it, unless I forget to add it several hours before sex, then I can just forget the $25 for sex."