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What is the average dose of Lamictal XR for epilepsy with seizures?

Everyone is different and because of that, the dose is often based on therapeutic response in each patient. The maintenance dose range for Lamictal XR depends on other medications you are taking. For partial onset seizures in patients 13 and older, the Lamictal XR prescribing information provides these ranges for maintenance doses:  For patients taking Valproate: Lamictal XR maintenance dose ranges from 200 to 250 mg per day. For Patients not taking Valproate, Carbamazepine, Phenytoin, Phenobarbital, Primidone, or Valproate: Lamictal XR maintenance dose ranges from 300 to 400 mg every day. For patients taking Carbamazepine, Phenytoin, Phenobarbital, or Primidone and not taking Valproate: Lamictal XR maintenance dose ranges from 400 to 600 mg every day. There are also other medications, including rifampin (a medication to treat tuberculosis) and certain oral contraceptives, that can affect the dosing of Lamictal XR.  The dosing of Lamictal XR can be confusing and concerning for some patients. The above maintenance doses from the prescribing information are used by doctors to guide dosing. Some doctors may prescribe higher doses based on lab values, patient seizure response, and side effects reported by the patient.

If you have concerns about your dose or if you are experiencing side effects, please discuss your concerns with your doctor. Your doctor will have your complete medical history and will be able to explain why he/she prescribed your specific dose and adjust your dose if needed.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.