I've never heard of that one, but meds vary.

I'm on Seroquel. Tons of people gain weight on it, and I haven't. I exercise regularly but don't have a super strict diet. I also didn't gain weight on Effexor, which many do as well. Only one med ever caused me weight gain - Remeron - and the weight gain side effect is so bad, it is not widely prescribed any more. I read once that in the veterinary practice they even use it as an appetite stimulant in cats & dogs needing to gain weight. But the weight I gained on it was because it made my super hungry so I ate more and very tired so I exercised less.

I think if you keep exercising and keep to your diet, you'll be OK. Though exercising twice a day is a bit much maybe? I don't know. I guess it depends on the type of exercise you are doing.

You don't usually just gain weight on a med. It tends to make people hungry, so they eat more and gain weight. But if you are on it short term and keep exercising (though don't over do it) and eat a normal healthy, diet, I think you will be fine.