Lamictal XR Drug Interactions

Oral Contraceptives or Hormone Replacement Therapy
Estrogen-containing medications, such as hormonal contraceptives (birth control pills, rings, or patches) or hormone replacement therapy (HRT), can decrease the level of Lamictal XR in your blood, possibly making it less effective.
 
This is especially problematic for cyclical birth control pills or hormone replacement medications that have a week of inactive pills to allow you to have your period, as your Lamictal XR levels will increase during the inactive pill week.
 
Talk to your healthcare provider about birth control options; a nonhormonal method (such as condoms) may be best for your situation.
 
Phenobarbital
Phenobarbital can decrease the level of Lamictal XR in your blood, possibly making it less effective. Your healthcare provider may recommend a higher Lamictal XR dosage if you are taking phenobarbital, and may recommend decreasing the dose if you stop taking phenobarbital.
 
Phenytoin
Phenytoin may decrease the level of Lamictal XR in your blood, perhaps making it less effective. Your healthcare provider may recommend a higher dose of Lamictal XR if you are taking phenytoin, and may recommend decreasing it if you stop taking phenytoin.
 
Primidone
Primidone may decrease the level of Lamictal XR in your blood, perhaps making it less effective. Your healthcare provider may recommend a higher Lamictal XR dose if you are taking primidone, and may recommend decreasing this amount if you stop taking primidone.
 
Rifampin
Rifampin may decrease the level of Lamictal XR in your blood, perhaps making it less effective. Your healthcare provider may recommend a higher dose of Lamictal XR if you are taking rifampin, and may recommend decreasing your dose if you stop taking rifampin.
Know the Signs - Concussion Safety

Lamictal XR Medication Information

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