I've been taking cipralex for almost a year and a half and I need to stop it asap because it made me gain a lot of weight, what abt the withdrawal sypm?

Make sure your doctor. Rules out other causes weight gain. Do not stop the medication without discussing it with your doctor. Often the withdrawal from an ssri can be stopped by substituting another ssri that is long-acting, such as prozac, (fluoxetine) in its place on a temporary basis. Best wishes.