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Lithium

Raw research findings for this medication. Mostly single studies, not curated or confirmed robust.

About Lithium

What it is

Lithium is the oldest mood stabiliser, a simple salt whose exact action is still being worked out; it affects several signalling pathways inside nerve cells, including the enzyme GSK-3. It is used to prevent manic and depressive episodes in bipolar disorder and to lower the risk of suicide, and sometimes as an add-on in depression. Blood levels are checked regularly. It is sold as Lithobid and Priadel, among other names.

How genes come into it

Lithium is not broken down by liver enzymes; the kidneys clear it unchanged, so the usual drug-processing genes do not apply. Only about a third of people respond fully, and studies have searched for genes that predict who does: clock genes such as NR1D1 and PER3, GSK3B, and regions found by genome-wide studies such as the one near GADL1. None has been confirmed strongly enough for a CPIC or DPWG guideline.

What research found

Every published finding on gene variants and Lithium. Upload your DNA file to see which of these rows apply to you.

Rated evidence (42 rated variants)

PharmGKB weighs all studies of a variant and rates how strong the evidence is, from 1A (strongest) to 4.

FKBP5 rs1360780: Level 3. Efficacy: Depression. 7.

CACNG2 rs2284017: Level 3. Efficacy: Bipolar Disorder. 2.

NR1D1;THRA rs2071427: Level 3. Efficacy: Bipolar Disorder. 2.

GSK3B rs334558: Level 3. Efficacy: Bipolar Disorder. 2.

Response (97 findings)

Studies of how well it worked in people carrying a variant.

rs1611255: Allele A is associated with decreased response to lithium in people with Bipolar Disorder as compared to allele C.

rs1611259: Allele T is associated with decreased response to lithium in people with Bipolar Disorder as compared to allele C.

rs16973410: Genotype CC is associated with increased response to lithium in people with Bipolar Disorder as compared to genotypes CT + TT.

rs209474: Allele A is associated with decreased response to lithium in people with Bipolar Disorder as compared to allele G.

Dosing (1 finding)

Studies of how much of the drug people needed or tolerated.

DRD1 rs265981: Allele A is not associated with response to lithium in people with Bipolar Disorder as compared to allele G.

Study findings and evidence levels: PharmGKB (CC BY-SA 4.0). Guidelines: CPIC and DPWG, as bundled in PharmCAT. Most studies were done mainly in people of European ancestry.

Related Drugs

More drugs from the same category

Abilify (Antipsychotics)

Adderall (Stimulants)

Aimovig (CGRP Antagonists)

Not a prescribing recommendation. This page is educational information about pharmacogenomic research and clinical guidelines - it is not medical or dosing advice, and not a prediction of how any medication will work for you. Never start, stop, or change a medication or dose based on it; talk to your doctor or pharmacist, who can order clinical-grade testing if appropriate.

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Content updated September 2026.

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