I've been taking cipralex for almost a year now, but i gained a lot of weight as a result, can i switch to prozac (fluoxetine) or what shall i do better for me?

Nefazodone maybe better: In my experience, Prozac is just as likely to cause weight gain over time as cipralex (escitalopram). Nefazodone, on the other hand, does not tend to cause weight gain or sexual side effects. It is also helpful for anxiety, insomnia, and chronic pain, though acute liver failure is an extremely rare potential risk. The maoi Parnate (tranylcypromine) could also be a potentially helpful alternative, but requires some dietary restrictions.

This needs to be: Discussed with your prescribing psychiatrist/ medical provider. If you are remaining in the ssri class - Lexapro (escitalopram) can sometimes be the most weight neutral (but there are never any guarantees).