Drug interactions
Insulin regular human + Prednisone
Severity: Moderate
Insulin regular human and Prednisone: 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
Prednisone raises blood glucose and can make insulin less effective. Patients with diabetes often need higher insulin doses during corticosteroid therapy, and doses may need to fall again when it is tapered.
What this interaction means in plain words
Insulin regular human and Prednisone 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.
Why it happens
Glucocorticoids increase hepatic gluconeogenesis and peripheral insulin resistance, opposing insulin's glucose-lowering action.
What to do
Increase the frequency of glucose monitoring when starting prednisone and titrate insulin upward as needed, particularly prandial doses. Reduce insulin again during tapering 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 Prednisone
- Bcg vaccine live + Prednisone Contraindicated
- Measles vaccine + Prednisone Contraindicated
- Mifepristone + Prednisone Contraindicated
- Prednisone + Radium-223 dichloride Contraindicated
- Prednisone + Smallpox vaccine live Contraindicated
- Adenovirus types 4 and 7 live + Prednisone Major
Frequently asked questions
Can I take Insulin regular human with Prednisone?
MediHelp rates the interaction as moderate. Insulin regular human and Prednisone 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. Prednisone raises blood glucose and can make insulin less effective. Patients with diabetes often need higher insulin doses during corticosteroid therapy, and doses may need to fall again when it is tapered.
How serious is the interaction between Insulin regular human and Prednisone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Increase the frequency of glucose monitoring when starting prednisone and titrate insulin upward as needed, particularly prandial doses. Reduce insulin again during tapering to avoid hypoglycemia.
What other medicines interact with Prednisone?
MediHelp also lists interactions of Prednisone with, for example, Bcg vaccine live, Measles vaccine, Mifepristone. The full list is on the Prednisone page.
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