Welcome to FitDay and the forums. I'm afraid I have no first-hand experience with that substance and it's side effects but I'm sure someone here must have.
In any event, it wouldn't hurt to start logging your food and exercise just to get a base line of where your're at. The more data you have, the easier it may be to come up with a plan to lose and maintain your weight.
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.