I've never gained weight on any medication. It's not attributable to any heroic restraint on my part though. I am not very sensitive to medications, so I don't tend to have side-effects (or success with the meds, sometimes).

As jimrat points out, on one occasion I simply wasn't eating anyway (I'm not anorexic, it was just a depression thing). At the moment, I have about 5-6kg to lose but I put this down to quitting smoking and drinking, and I absolutely have been scoffing everything in sight containing chocolate. I'm on Seroquel but I've not been taking it long enough or at a high enough dose to account for any weight gain, I think.

Hamster, your post is perfectly articulate but like Buggs, I wish I knew...