Tegretol (carbamazepine) interacts with many medications. Always inform your doctor and pharmacist of all medications, including over-the-counter drugs and herbal supplements, you are taking. This ensures your safety and treatment efficacy.
Significant Interactions
Grapefruit juice: Avoid grapefruit juice while taking Tegretol. It can increase carbamazepine levels in your blood, leading to potential side effects.
Hormonal contraceptives: Tegretol can reduce the effectiveness of birth control pills. Consider alternative contraception methods while on this medication.
Warfarin: Tegretol can alter how your body processes warfarin, a blood thinner. Close monitoring of your INR (international normalized ratio) is necessary.
Macrolide antibiotics (e. g., erythromycin): These antibiotics can increase carbamazepine blood levels, potentially causing adverse reactions. Your doctor might adjust your Tegretol dosage.
Certain antidepressants (e. g., fluoxetine, paroxetine): Interactions with these medications may either increase or decrease Tegretol’s effectiveness. Close monitoring and potential dosage adjustments are needed.
Other Medications Requiring Caution
Many other medications can interact with Tegretol, including some anticonvulsants, antifungal medications, and other psychotropic drugs. Your doctor will discuss any potential risks based on your specific medication profile. Don’t hesitate to ask questions about any concerns you may have.
Monitoring and Reporting
Regular blood tests might be needed to monitor your carbamazepine levels and adjust your dosage as needed, especially when starting or stopping other medications. Report any new or worsening symptoms to your doctor immediately.
