Lamotrigine is a medication primarily used to treat epilepsy and bipolar disorder. It works by stabilizing electrical activity in the brain, which helps to prevent seizures and mood swings. This drug is often prescribed as part of a comprehensive treatment plan and can be taken alone or in combination with other medications. Common side effects may include dizziness, headache, and nausea, but it is generally well-tolerated. Regular monitoring by a healthcare provider is important to ensure its effectiveness and safety.