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Drug interactions

Buspirone + Mitotane

Severity: Moderate

Buspirone and Mitotane: 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

Mitotane is a strong CYP3A4 inducer and can markedly lower buspirone concentrations, causing loss of anxiolytic effect. The induction can persist for weeks after mitotane is stopped.

What this interaction means in plain words

Buspirone and Mitotane 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; Mitotane belongs to Oncology.

Evidence level: Moderate

Why it happens

Mitotane induces CYP3A4, increasing buspirone metabolism and reducing exposure.

What to do

Monitor anxiolytic response and increase the buspirone dose if needed. Reassess the dose after mitotane is withdrawn, as induction wanes slowly.

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 Mitotane?

MediHelp rates the interaction as moderate. Buspirone and Mitotane 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. Mitotane is a strong CYP3A4 inducer and can markedly lower buspirone concentrations, causing loss of anxiolytic effect. The induction can persist for weeks after mitotane is stopped.

How serious is the interaction between Buspirone and Mitotane?

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 anxiolytic response and increase the buspirone dose if needed. Reassess the dose after mitotane is withdrawn, as induction wanes slowly.

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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