Hi, Jen.....I would be interested in knowing that as well. My daughter is on Ripserdal and has had some weight gain which she is not happy about....when it came time to choose a mood stabilizer we chose Lamictal not only for it's great side effect profile but also because of it being one of the very few meds that DOES NOT cause weight gain.
My daughter only started Lamictal yesterday. How are you doing on the Seroquel as far as weight gain??? And how long have you been on the Lamictal??? If you are wondering if you will get a weight gain with Seroquel vs. Lamictal I would guess it was the Seroquel from what I have researched.
When I researched Risperdal it said it was wieght neutral and yet my daughter gained weight. So basically every person is different with meds so while one person doesn't gain with a particular med another will!!