Drug interactions
Buspirone + Lithium
Severity: Moderate
Buspirone and Lithium: 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
Both agents affect serotonergic transmission, and combined use has been associated with rare reports of serotonin toxicity. Lithium is also commonly used with buspirone as augmentation, so the combination is often tolerated.
What this interaction means in plain words
Buspirone and Lithium 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.
Buspirone belongs to Central Nervous System; Lithium belongs to Central Nervous System.
Why it happens
Additive serotonergic effects; lithium enhances serotonin neurotransmission.
What to do
Monitor for tremor, agitation, diarrhea and hyperthermia when starting or adjusting either drug. Check lithium levels per routine practice.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Buspirone and Lithium, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Buspirone
- Buspirone + Isocarboxazid Contraindicated
- Buspirone + Linezolid Contraindicated
- Buspirone + Phenelzine Contraindicated
- Buspirone + Procarbazine Contraindicated
- Buspirone + Selegiline Contraindicated
- Buspirone + Selegiline transdermal Contraindicated
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 Buspirone with Lithium?
MediHelp rates the interaction as moderate. Buspirone and Lithium 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. Both agents affect serotonergic transmission, and combined use has been associated with rare reports of serotonin toxicity. Lithium is also commonly used with buspirone as augmentation, so the combination is often tolerated.
How serious is the interaction between Buspirone and Lithium?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for tremor, agitation, diarrhea and hyperthermia when starting or adjusting either drug. Check lithium levels per routine practice.
What other medicines interact with Buspirone?
MediHelp also lists interactions of Buspirone with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Buspirone page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
