"i had been on this medication in the past and discontinued usage after i got pregnant. i  started back a few months ago, not realizing what the side effects were. i started gaining weight incredibly fast with no change to my diet and exercise and wasn&#039;t going to the bathroom unless i used a laxative. i was stumped and depressed about it up until yesterday when i spoke with a gi doctor. finally i had an answer only after many visits to my family doctor and many co-payments which added up quickly (with no solution). needless to say, i am so relieved to finally know what is going on with me... 20 lbs later but i see the light at the end of tunnel. hope this helps."