Drug interactions
Lithium + Loxapine
Severity: Moderate
Lithium and Loxapine: 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
Lithium with antipsychotics such as loxapine can cause neurotoxicity, extrapyramidal effects and, rarely, neuroleptic malignant syndrome. Serotonergic effects are possible but less established.
What this interaction means in plain words
Lithium and Loxapine 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; Loxapine belongs to Central Nervous System.
Why it happens
Additive dopamine blockade and CNS effects; the exact mechanism is not fully established.
What to do
Use the lowest effective doses and monitor lithium levels and neurological status. Stop both drugs if fever, rigidity or altered mental status occurs.
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
Other interactions of Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Frequently asked questions
Can I take Lithium with Loxapine?
MediHelp rates the interaction as moderate. Lithium and Loxapine 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 with antipsychotics such as loxapine can cause neurotoxicity, extrapyramidal effects and, rarely, neuroleptic malignant syndrome. Serotonergic effects are possible but less established.
How serious is the interaction between Lithium and Loxapine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor lithium levels and neurological status. Stop both drugs if fever, rigidity or altered mental status occurs.
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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