Lamictal is used to treat Epilepsy. The generic version is called Lamotrigine. The average Lamictal cash price is about $372.64 for a supply of Tablet Chewable 5 MG 30 pcs. You can reduce your Lamictal cost by up to 75% with our free Lamictal discount card. Bring it to a participating pharmacy near you to save on your prescription medication.