Drug interactions
Dexamethasone + Metformin-sitagliptin
Severity: Moderate
Dexamethasone 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
Dexamethasone is a potent glucocorticoid that commonly causes hyperglycemia and can undermine control in patients with diabetes. The effect is dose and duration dependent and may require temporary treatment intensification.
What this interaction means in plain words
Dexamethasone 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.
Dexamethasone belongs to Endocrine; Metformin-sitagliptin belongs to Endocrine.
Why it happens
Glucocorticoids increase hepatic glucose production and peripheral insulin resistance, opposing the antidiabetic drugs.
What to do
Monitor blood glucose closely during dexamethasone therapy, adjust antidiabetic therapy (such as adding insulin) as needed, and reduce again when the steroid is 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?
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Other interactions of Metformin-sitagliptin
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Dexamethasone with Metformin-sitagliptin?
MediHelp rates the interaction as moderate. Dexamethasone 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. Dexamethasone is a potent glucocorticoid that commonly causes hyperglycemia and can undermine control in patients with diabetes. The effect is dose and duration dependent and may require temporary treatment intensification.
How serious is the interaction between Dexamethasone 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 closely during dexamethasone therapy, adjust antidiabetic therapy (such as adding insulin) as needed, and reduce again when the steroid is stopped.
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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