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Drug interactions

Buspirone + Erythromycin lactobionate

Severity: Moderate

Buspirone and Erythromycin lactobionate: 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

Intravenous erythromycin inhibits CYP3A4 and can raise buspirone concentrations markedly. Patients may develop excessive drowsiness, dizziness, and nausea.

What this interaction means in plain words

Buspirone and Erythromycin lactobionate 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; Erythromycin lactobionate belongs to Anti Bacterial.

Evidence level: Moderate

Why it happens

Erythromycin inhibits CYP3A4-mediated metabolism of buspirone.

What to do

Reduce the buspirone dose or temporarily withhold it during erythromycin therapy, and monitor for sedation and dizziness. Consider a non-CYP3A4-inhibiting antibiotic.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Buspirone with Erythromycin lactobionate?

MediHelp rates the interaction as moderate. Buspirone and Erythromycin lactobionate 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. Intravenous erythromycin inhibits CYP3A4 and can raise buspirone concentrations markedly. Patients may develop excessive drowsiness, dizziness, and nausea.

How serious is the interaction between Buspirone and Erythromycin lactobionate?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Reduce the buspirone dose or temporarily withhold it during erythromycin therapy, and monitor for sedation and dizziness. Consider a non-CYP3A4-inhibiting antibiotic.

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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