Epilepsy Home > Lamictal XR Dosage

When starting Lamictal XR, your healthcare provider will start you at a low dosage and gradually increase the amount -- this reduces the risk of serious side effects. Dosing with Lamictal XR is anything but simple, and your particular dose will depend on a number of factors, such as your medical history and your current medications.

Lamictal XR Dosing: An Introduction

The dose of Lamictal® XR™ (extended-release lamotrigine) your healthcare provider recommends will vary, depending on a number of factors, including:
  • How you respond to Lamictal XR
  • Other medications you may be taking
  • Other medical conditions you may have.
As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.

Recommended Dose for Seizures

Dosing for Lamictal XR is complicated. Not only will the recommended dose change, depending on other medications you are taking or other medical conditions you have, but Lamictal XR must be started at a low dose and increased slowly for up to eight weeks, which can be confusing for people.
Make sure your healthcare provider knows about every medication you are taking, as well as your other medical conditions, especially kidney or liver problems.
Increasing your Lamictal XR dosage faster than recommended can increase your risk of side effects, especially a life-threatening rash (see Lamictal Rash). Be sure you understand your healthcare provider's instructions thoroughly and follow them closely. If you have stopped taking Lamictal XR for a while -- even for just a few days -- talk to your healthcare provider. You may need to start at a lower amount and slowly increase your dose again.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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