t even know that much about the drugs they prescribe, but
weight gain is always listed as one of the most common side
effects especially with drugs that affect brain neurotransmitters. I gained a lot of Paxil, but didn't gain much at all on Lexapro or Celexa, whatever that means. Didn't gain at all on imipramine, a tricyclic. The side effects are very individual, and those who are prone to weight problems without the meds will have a harder time.