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Drug interactions

Methylprednisolone + Posaconazole

Severity: Moderate

Methylprednisolone and Posaconazole: 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

Posaconazole can raise methylprednisolone concentrations, increasing the risk of corticosteroid adverse effects such as hyperglycemia, fluid retention, adrenal suppression and Cushingoid features. Effects may be more marked with prolonged use.

What this interaction means in plain words

Methylprednisolone and Posaconazole 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.

Methylprednisolone belongs to Endocrine; Posaconazole belongs to Anti Fungals.

Evidence level: Moderate

Why it happens

Posaconazole inhibits CYP3A4, reducing methylprednisolone metabolism.

What to do

Monitor for steroid excess and consider reducing the methylprednisolone dose during azole therapy. Watch blood glucose and blood pressure.

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 Methylprednisolone with Posaconazole?

MediHelp rates the interaction as moderate. Methylprednisolone and Posaconazole 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. Posaconazole can raise methylprednisolone concentrations, increasing the risk of corticosteroid adverse effects such as hyperglycemia, fluid retention, adrenal suppression and Cushingoid features. Effects may be more marked with prolonged use.

How serious is the interaction between Methylprednisolone and Posaconazole?

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 steroid excess and consider reducing the methylprednisolone dose during azole therapy. Watch blood glucose and blood pressure.

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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