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Drug interactions

Deflazacort + Metformin-sitagliptin

Severity: Moderate

Deflazacort and Metformin-sitagliptin: 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

Deflazacort is a systemic glucocorticoid that can raise blood glucose and reduce the effectiveness of antidiabetic therapy. Higher doses and longer courses make this more likely.

What this interaction means in plain words

Deflazacort and Metformin-sitagliptin 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.

Deflazacort belongs to Miscellaneous; Metformin-sitagliptin belongs to Endocrine.

Evidence level: Moderate

Why it happens

Glucocorticoids increase hepatic gluconeogenesis and insulin resistance, opposing the glucose-lowering effects of metformin and sitagliptin.

What to do

Monitor blood glucose during corticosteroid therapy and adjust antidiabetic doses if needed, then reassess when the steroid is tapered.

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 Deflazacort with Metformin-sitagliptin?

MediHelp rates the interaction as moderate. Deflazacort and Metformin-sitagliptin 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. Deflazacort is a systemic glucocorticoid that can raise blood glucose and reduce the effectiveness of antidiabetic therapy. Higher doses and longer courses make this more likely.

How serious is the interaction between Deflazacort and Metformin-sitagliptin?

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 corticosteroid therapy and adjust antidiabetic doses if needed, then reassess when the steroid is tapered.

What other medicines interact with Metformin-sitagliptin?

MediHelp also lists interactions of Metformin-sitagliptin with, for example, Clozapine, Contrast media, Diatrizoate meglumine / diatrizoate. The full list is on the Metformin-sitagliptin page.

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