Drug interactions
Influenza a vaccine + Prednisolone
Severity: Moderate
Influenza a vaccine 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
Higher-than-physiologic doses of corticosteroids can blunt the antibody response to the H5N1 vaccine. Protection may therefore be reduced in patients on immunosuppressive steroid doses.
What this interaction means in plain words
Influenza a vaccine 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.
Why it happens
Corticosteroid immunosuppression dampens lymphocyte activation and antibody production after vaccination.
What to do
Where possible, vaccinate before starting steroids or when the dose is low. Do not rely on a single dose for protection if the patient is on high-dose steroids, and follow the schedule for immunocompromised patients.
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 Prednisolone
- Bcg vaccine live + Prednisolone Contraindicated
- 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 Influenza a vaccine with Prednisolone?
MediHelp rates the interaction as moderate. Influenza a vaccine 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. Higher-than-physiologic doses of corticosteroids can blunt the antibody response to the H5N1 vaccine. Protection may therefore be reduced in patients on immunosuppressive steroid doses.
How serious is the interaction between Influenza a vaccine 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: Where possible, vaccinate before starting steroids or when the dose is low. Do not rely on a single dose for protection if the patient is on high-dose steroids, and follow the schedule for immunocompromised patients.
What other medicines interact with Prednisolone?
MediHelp also lists interactions of Prednisolone 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 Prednisolone page.
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