Drug interactions
Buspirone + Paroxetine
Severity: Moderate
Buspirone and Paroxetine: 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
Combining an SSRI with buspirone can increase serotonergic effects and in rare cases cause serotonin syndrome. The pairing is widely used as augmentation in anxiety and depression, and clinically significant toxicity is uncommon.
What this interaction means in plain words
Buspirone and Paroxetine 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; Paroxetine belongs to Central Nervous System.
Why it happens
Additive serotonergic effects of paroxetine reuptake inhibition and buspirone 5-HT1A agonism.
What to do
Start buspirone at a low dose and titrate slowly. Educate the patient about serotonin syndrome symptoms and reassess if they 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 Paroxetine
- Isocarboxazid + Paroxetine Contraindicated
- Methylene blue + Paroxetine Contraindicated
- Paroxetine + Phenelzine Contraindicated
- Paroxetine + Pimozide Contraindicated
- Paroxetine + Procarbazine Contraindicated
- Paroxetine + Selegiline Contraindicated
Frequently asked questions
Can I take Buspirone with Paroxetine?
MediHelp rates the interaction as moderate. Buspirone and Paroxetine 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. Combining an SSRI with buspirone can increase serotonergic effects and in rare cases cause serotonin syndrome. The pairing is widely used as augmentation in anxiety and depression, and clinically significant toxicity is uncommon.
How serious is the interaction between Buspirone and Paroxetine?
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 buspirone at a low dose and titrate slowly. Educate the patient about serotonin syndrome symptoms and reassess if they 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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