erectile dysfunction
"42 year old taking anti-depressant that severely affects my ability to get an erection.  I've been taking the 5mg 1 a day Cialis for a couple of years now.  Performance is good but sometimes I would lose my erection after changing positions many times, not sure why.  For all medicines I am "Mr. Side Effect" and this one gives me pretty regular headaches and heartburn.  I plan on trying something else in the near future."