benign prostatic hyperplasia
"68 years old.  Primary problem:  Erections not lasting long enough.  Secondary problem:  Starting to have to go urinate once or twice at night.  Short term erections had ruined our prior healthy sex life and we started avoiding sex altogether, once a month or less.  We were both bitter and angry most of the time.  Tried 5 mg Cialis for a month on the free trial and cured both problems: Erections lasted long enough (more than half the time) and less waking to urinate.  HOWEVER, Cialis made my heart race and beats to become irregular.  Had to quit it.  Didn't try to half the dose.  Now on Levitra 5 mg (prior to sex, only) and no cardiac problems and I can manage to do sex 2  times a week, not enough for me, but the best I can do."