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Drug interactions

Indinavir + Methylprednisolone

Severity: Moderate

Indinavir and Methylprednisolone: 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

Indinavir inhibits CYP3A4 and can increase methylprednisolone exposure, raising the risk of systemic corticosteroid effects such as adrenal suppression and Cushingoid features.

What this interaction means in plain words

Indinavir and Methylprednisolone 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.

Evidence level: Moderate

Why it happens

Indinavir inhibits CYP3A4 and P-glycoprotein, decreasing methylprednisolone clearance.

What to do

Monitor for corticosteroid toxicity and reduce the methylprednisolone dose if prolonged therapy is needed.

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 Indinavir with Methylprednisolone?

MediHelp rates the interaction as moderate. Indinavir and Methylprednisolone 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. Indinavir inhibits CYP3A4 and can increase methylprednisolone exposure, raising the risk of systemic corticosteroid effects such as adrenal suppression and Cushingoid features.

How serious is the interaction between Indinavir and Methylprednisolone?

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 for corticosteroid toxicity and reduce the methylprednisolone dose if prolonged therapy is needed.

What other medicines interact with Methylprednisolone?

MediHelp also lists interactions of Methylprednisolone with, for example, Bcg vaccine live, Measles mumps and rubella vaccine live, Measles mumps rubella and varicella vaccine live. The full list is on the Methylprednisolone page.

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