Drug interactions
Amitriptyline + Buspirone
Severity: Moderate
Amitriptyline and Buspirone: 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 drugs enhance serotonergic transmission, so combined use carries a small risk of serotonin syndrome. In practice the combination is used at times and risk is low at usual doses, but symptoms may include agitation, tremor, hyperthermia and clonus.
What this interaction means in plain words
Amitriptyline and Buspirone 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.
Amitriptyline belongs to Central Nervous System; Buspirone belongs to Central Nervous System.
Why it happens
Additive serotonergic effects from buspirone 5-HT1A agonism and amitriptyline reuptake inhibition.
What to do
Start with low doses and monitor for signs of serotonin toxicity after initiation or dose increases; stop one agent if symptoms appear.
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 Buspirone
- Buspirone + Isocarboxazid Contraindicated
- Buspirone + Linezolid Contraindicated
- Buspirone + Phenelzine Contraindicated
- Buspirone + Procarbazine Contraindicated
- Buspirone + Selegiline Contraindicated
- Buspirone + Selegiline transdermal Contraindicated
Other interactions of Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Frequently asked questions
Can I take Amitriptyline with Buspirone?
MediHelp rates the interaction as moderate. Amitriptyline and Buspirone 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 drugs enhance serotonergic transmission, so combined use carries a small risk of serotonin syndrome. In practice the combination is used at times and risk is low at usual doses, but symptoms may include agitation, tremor, hyperthermia and clonus.
How serious is the interaction between Amitriptyline and Buspirone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with low doses and monitor for signs of serotonin toxicity after initiation or dose increases; stop one agent if symptoms appear.
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.
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