Trusted by over 10K subscribers
    Free & discreet shipping on all prescriptions
    Affordable pricing with no hidden fees
    FDA-regulated pharmacies
    100% online process
    Trusted by over 10K subscribers
    Free & discreet shipping on all prescriptions
    Affordable pricing with no hidden fees
    FDA-regulated pharmacies
    100% online process
    Trusted by over 10K subscribers
    Free & discreet shipping on all prescriptions
    Affordable pricing with no hidden fees
    FDA-regulated pharmacies
    100% online process
    HomeMedication GuideDrug InteractionsCarbamazepine + Lithium
    Moderate interaction

    Does Carbamazepine Interact With Lithium?

    Methyldopa, Phenytoin and Carbamazepine Clinical Impact: Concomitant use may increase risk of adverse reactions of these drugs.

    Reviewed by the OmniRx Health clinical teamLast reviewed Jul 4, 2026

    Severity: Moderate

    Severity basis: drug interactions section (keywords: may increase). Combining Carbamazepine (Anticonvulsant) and Lithium (Mood stabilizer) is classified as a moderate interaction.

    What to Do

    Use this combination with caution. Your prescriber may monitor you more closely or adjust doses.

    How This Interaction Works

    Interactions like this one can happen when two medicines have overlapping effects, or when one changes how the other is absorbed, broken down, or cleared from the body. Carbamazepine is a anticonvulsant and Lithium is a mood stabilizer; together they are documented as a moderate interaction. How much this matters depends on your dose, your other medications, and your overall health.

    If You Take Both Medications

    If you have been prescribed both Carbamazepine and Lithium, do not start, stop, or change either medication on your own — some medicines are unsafe to stop suddenly. Tell your prescriber and pharmacist that you take both so they can decide whether the combination is right for you, adjust the dose, monitor you more closely, or suggest an alternative.

    From the FDA Label

    Methyldopa, Phenytoin and Carbamazepine Clinical Impact: Concomitant use may increase risk of adverse reactions of these drugs.

    Source: FDA structured product labeling (set_id 01c4facd-ed79-4078-ba33-2044de372d0f).

    Carbamazepine

    Anticonvulsant

    Brands: Tegretol, Carbatrol

    View Carbamazepine safety profile

    Lithium

    Mood stabilizer

    Brands: Lithobid, Eskalith

    View Lithium safety profile

    Check these against your full medication list in our free Interaction Checker

    Frequently Asked Questions

    Can you take Carbamazepine and Lithium together?

    Carbamazepine and Lithium have a documented moderate interaction. Use this combination with caution. Your prescriber may monitor you more closely or adjust doses.

    How serious is the Carbamazepine and Lithium interaction?

    It is classified as a moderate interaction, based on the FDA label's drug interactions section (keywords: may increase). A moderate interaction can be clinically meaningful and usually calls for monitoring or a dose adjustment.

    What should I do if I'm taking both Carbamazepine and Lithium?

    If you have been prescribed both Carbamazepine and Lithium, do not start, stop, or change either medication on your own — some medicines are unsafe to stop suddenly. Tell your prescriber and pharmacist that you take both so they can decide whether the combination is right for you, adjust the dose, monitor you more closely, or suggest an alternative.

    This information is educational — not medical advice.

    This page is provided for general educational purposes and summarizes publicly available data from sources such as the U.S. Food & Drug Administration. It is not a substitute for the judgment of a licensed clinician and should not be used to start, stop, or change any medication. It may be incomplete or out of date, and individual circumstances vary. Always talk with your prescriber or pharmacist about your specific medications and health conditions. If you think you may have a medical emergency, call 911.

    Questions About Your Medications?

    A licensed OmniRx provider can review your full medication list and help you understand what's safe for you — no office visit required.

    Other Carbamazepine Interactions

    Other Lithium Interactions