Conversion from immediate-release lamotrigine to LAMICTAL XR: The initial dose of LAMICTAL XR should match the total daily dose of the immediate-release lamotrigine. Lamictal XR is an antiseizure medication used to treat primary generalized tonic-clonic seizures and partial-onset seizures in people aged 13 years and older. For patients being converted from immediate-release lamotrigine to LAMICTAL XR, the initial dose of LAMICTAL XR should match the total daily dose of the immediate-release lamotrigine. Lamictal XR (Lamotrigine Extended-Release Tablets) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Lamictal is an anti-epileptic medication used treat seizures in adults and children over 2 years old. Learn about side effects, interactions and indications. Lamotrigine is a medicine that is used to manage certain types of seizures or bipolar disorder. The most common side effects of lamotrigine are dizziness, drowsiness, tremor, double/blurred. Medscape - Seizure, Lennox-Gastaut syndrome-specific dosing for Lamictal, Lamictal XR (lamotrigine), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy. LAMICTAL XR passes into breast milk and may cause side effects in a breastfed baby. If you breastfeed while taking LAMICTAL XR, watch your baby closely for trouble breathing, episodes of temporarily stopping breathing, sleepiness, or poor sucking. Conversion from immediate-release lamotrigine to LAMICTAL XR: The initial dose of LAMICTAL XR should match the total daily dose of the immediate-release lamotrigine. Patients should be closely monitored for seizure control after conversion. (2.4) Lamictal XR is an anti-epileptic medication, also called an anticonvulsant. Lamictal XR is used alone or with other medications to treat epileptic seizures in adults and children. This medicine is also used to delay mood episodes in adults with bipolar disorder (manic depression).