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Drug interactions

Etravirine + Methylprednisolone

Severity: Moderate

Etravirine 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

Etravirine is a modest inducer of CYP3A4 and may lower methylprednisolone exposure, reducing anti-inflammatory or immunosuppressive effect. Methylprednisolone may also modestly lower etravirine levels, but the clinical significance of this is uncertain.

What this interaction means in plain words

Etravirine 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.

Etravirine belongs to Anti Virals; Methylprednisolone belongs to Endocrine.

Evidence level: Low

Why it happens

Etravirine induces CYP3A4, increasing the metabolism of methylprednisolone, a CYP3A4 substrate.

What to do

Monitor clinical response to methylprednisolone and increase the dose if the effect is inadequate. Monitor HIV viral load during prolonged high-dose steroid therapy.

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 Etravirine with Methylprednisolone?

MediHelp rates the interaction as moderate. Etravirine 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. Etravirine is a modest inducer of CYP3A4 and may lower methylprednisolone exposure, reducing anti-inflammatory or immunosuppressive effect. Methylprednisolone may also modestly lower etravirine levels, but the clinical significance of this is uncertain.

How serious is the interaction between Etravirine 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 clinical response to methylprednisolone and increase the dose if the effect is inadequate. Monitor HIV viral load during prolonged high-dose steroid therapy.

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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