What about Effector XR 500 mg 2 day does that cause weight gain? Where are the answers to questions

I have bi-polar mania mostly sometimes with depression, I have been taking EffectorXR 500 mg. 2 times a day for about a year.  I went from 115 lbs. to 140 lbs.  I can't fit into my clothes.  I also take several vitamins my regular doctor prescribed, and take Valtrex and provigil for narcolespy 200 mg. 2 a day,  and I have asthma and take zertrx and abutaal inhaler and  Advair  I also have ADD and tramatic stress syndrome and extreme depression disorder.  Are any of these meds making me gain weight, I already had two bi-pass surgeries, the first one 12 yrs ago, I threw up for 8 yrs, so the doctor sent me to have a different one, and then I had diarrea for two years.  It all stopped now and I feel good, but the weight gain is making me upset because now my new clothes don't fit.

Please see if you can help me.  I go to a psychologist every other week and see the psychiatrist every three months.  I even go to a group support meeting for depression and one for bariatric once a month each.  Thank you. Penny

sunshinebabycuddles@yahoo.com  Altogether I lost 2oo lbs. except for the new weight gain of 25 lbs.