Does Lithium Interact With Quetiapine?

In the mania adjunct studies, where quetiapine was added to lithium or divalproex, 12% (24/196) of quetiapine treated patients compared to 7% (15/203) of placebo-treated patients had elevated TSH levels.

Severity: Minor

Severity basis: warnings section. Combining Lithium (Mood stabilizer) and Quetiapine (Atypical antipsychotic) is classified as a minor interaction.

What to Do

This is generally a minor interaction, but review it with your pharmacist to be sure it is safe for you.

From the FDA Label

In the mania adjunct studies, where quetiapine was added to lithium or divalproex, 12% (24/196) of quetiapine treated patients compared to 7% (15/203) of placebo-treated patients had elevated TSH levels.

Source: FDA structured product labeling (set_id 01261008-5f42-4844-8a65-d4545a67a309).

Lithium

Mood stabilizer

Brands: Lithobid, Eskalith

View Lithium safety profile

Quetiapine

Atypical antipsychotic

Brands: Seroquel

View Quetiapine safety profile

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

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 It may be incomplete or out of date, and individual circumstances vary.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.

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