Drug interactions
Lithium + Sodium chloride
Severity: Moderate
Lithium and Sodium chloride: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Sodium intake directly influences lithium clearance. High sodium intake increases lithium excretion and may lower levels, while sodium depletion raises reabsorption and may lead to lithium toxicity.
What this interaction means in plain words
Lithium and Sodium chloride can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Lithium belongs to Central Nervous System; Sodium chloride belongs to Dermatology.
Why it happens
Lithium is reabsorbed in the proximal tubule alongside sodium, so changes in sodium balance change lithium renal clearance.
What to do
Advise patients to keep sodium and fluid intake consistent. Check serum lithium after major dietary sodium changes or when giving large sodium loads.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Lithium
- Lithium + Thioridazine Contraindicated
- Lithium + Vandetanib Contraindicated
- Aceclofenac + Lithium Major
- Acemetacin + Lithium Major
- Amisulpride + Lithium Major
- Amlodipine-benazepril + Lithium Major
Frequently asked questions
Can I take Lithium with Sodium chloride?
MediHelp rates the interaction as moderate. Lithium and Sodium chloride can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Sodium intake directly influences lithium clearance. High sodium intake increases lithium excretion and may lower levels, while sodium depletion raises reabsorption and may lead to lithium toxicity.
How serious is the interaction between Lithium and Sodium chloride?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to keep sodium and fluid intake consistent. Check serum lithium after major dietary sodium changes or when giving large sodium loads.
What other medicines interact with Lithium?
MediHelp also lists interactions of Lithium with, for example, Thioridazine, Vandetanib, Aceclofenac. The full list is on the Lithium page.
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