Drug interactions
Metformin-sitagliptin + Prednisolone
Severity: Moderate
Metformin-sitagliptin and Prednisolone: 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
Systemic corticosteroids such as prednisolone raise blood glucose and can reduce the effectiveness of metformin and sitagliptin. Glycemic control may deteriorate, particularly with higher doses or prolonged courses.
What this interaction means in plain words
Metformin-sitagliptin and Prednisolone 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-sitagliptin belongs to Endocrine; Prednisolone belongs to Endocrine.
Why it happens
Glucocorticoids increase hepatic gluconeogenesis and cause peripheral insulin resistance, opposing the glucose-lowering effect of the antidiabetic drugs.
What to do
Monitor blood glucose more frequently during corticosteroid therapy and increase antidiabetic doses if needed. Reassess and reduce doses when the steroid is tapered or stopped to avoid hypoglycemia.
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 Prednisolone
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- Measles mumps and rubella vaccine live + Prednisolone Contraindicated
- Measles mumps rubella and varicella vaccine live + Prednisolone Contraindicated
- Measles vaccine + Prednisolone Contraindicated
- Mifepristone + Prednisolone Contraindicated
- Prednisolone + Radium-223 dichloride Contraindicated
Frequently asked questions
Can I take Metformin-sitagliptin with Prednisolone?
MediHelp rates the interaction as moderate. Metformin-sitagliptin and Prednisolone 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. Systemic corticosteroids such as prednisolone raise blood glucose and can reduce the effectiveness of metformin and sitagliptin. Glycemic control may deteriorate, particularly with higher doses or prolonged courses.
How serious is the interaction between Metformin-sitagliptin and Prednisolone?
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 more frequently during corticosteroid therapy and increase antidiabetic doses if needed. Reassess and reduce doses when the steroid is tapered or stopped to avoid hypoglycemia.
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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