birth control
"I'm rating this 5/10 because, well, it prevented pregnancy.  It was cheap and easy to use, I used it back to back to prevent periods, too.  I took it for about 8 months.  Right away, I had trouble eating foods, especially in the morning.  Even things I liked to eat, cereals, fruits, etc., I couldn't stomach.  By month 5 I had  chronic nausea, heartburn, indigestion, upset stomach.  There was hardly anything I could eat that wouldn't make me sick.  In the beginning of month 8 I was diagnosed with gallbladder disease.  I stopped taking Portia and my symptoms disappeared within a week so I was able to cancel my surgery.   I've been on various birth control continuously for over 7 years.  I have never had problems before. "