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Drug interactions

Mitotane + Salmeterol

Severity: Moderate

Mitotane and Salmeterol: 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 that can lower salmeterol concentrations, potentially reducing bronchodilator efficacy. The inducing effect can persist for weeks after mitotane is stopped.

What this interaction means in plain words

Mitotane and Salmeterol 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 belongs to Oncology; Salmeterol belongs to Respiratory.

Evidence level: Moderate

Why it happens

Mitotane induces CYP3A4, increasing salmeterol metabolism.

What to do

Monitor asthma or COPD control and consider additional or alternative bronchodilator therapy if symptoms worsen. Reassess after mitotane discontinuation.

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 Mitotane with Salmeterol?

MediHelp rates the interaction as moderate. Mitotane and Salmeterol 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 that can lower salmeterol concentrations, potentially reducing bronchodilator efficacy. The inducing effect can persist for weeks after mitotane is stopped.

How serious is the interaction between Mitotane and Salmeterol?

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 asthma or COPD control and consider additional or alternative bronchodilator therapy if symptoms worsen. Reassess after mitotane discontinuation.

What other medicines interact with Salmeterol?

MediHelp also lists interactions of Salmeterol with, for example, Ritonavir, Saquinavir, Amitriptyline. The full list is on the Salmeterol 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.

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