period pain
"My doctor prescribed me Ponstel recently.  I suffer from endometriosis, and am in pain 3 weeks a month.  I took the first pill, fell asleep shortly afterwards.  When I woke up, I had horrible pains shooting through my stomach.  I was told to stop taking it, and got prescribed good old Vicodin.  I realize I'm in a small percentage of people who have had problems with this medicine, but since the other reviews have been good, I wanted to let people know that it does have side effects."