Will you gain weight on lamictal with Prozac?

Weight gain is not a common side effect of Lamictal (lamotrigine) and is generally considered weight-neutral. However, Prozac (fluoxetine) can cause weight changes in some individuals, typically leading to weight loss initially but potentially weight gain with long-term use. Individual responses to medications can vary widely, so it's essential to monitor your weight and discuss any concerns with your healthcare provider.