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Drug interactions

Metformin + Methylprednisolone

Severity: Moderate

Metformin 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

Corticosteroids raise blood glucose and can reduce the effectiveness of metformin. Glycemic control may deteriorate during steroid courses, particularly at higher doses.

What this interaction means in plain words

Metformin 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.

Metformin belongs to Endocrine; Methylprednisolone belongs to Endocrine.

Evidence level: Moderate

Why it happens

Pharmacodynamic antagonism through glucocorticoid-induced insulin resistance and increased hepatic gluconeogenesis.

What to do

Monitor blood glucose during steroid therapy and adjust antidiabetic therapy, adding insulin if required. Reassess doses when the steroid is reduced or stopped.

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 Metformin with Methylprednisolone?

MediHelp rates the interaction as moderate. Metformin 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. Corticosteroids raise blood glucose and can reduce the effectiveness of metformin. Glycemic control may deteriorate during steroid courses, particularly at higher doses.

How serious is the interaction between Metformin 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 blood glucose during steroid therapy and adjust antidiabetic therapy, adding insulin if required. Reassess doses when the steroid is reduced or stopped.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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