Drug interactions
Dexamethasone + Hepatitis a / b vaccine
Severity: Moderate
Dexamethasone and Hepatitis a / b vaccine: 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
Corticosteroids can reduce the antibody response to inactivated hepatitis vaccines. Seroprotection may be lower, particularly with prolonged high-dose therapy.
What this interaction means in plain words
Dexamethasone and Hepatitis a / b vaccine 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
Glucocorticoid-mediated immunosuppression reduces B- and T-cell responses to the vaccine antigens.
What to do
Vaccinate where indicated, ideally before starting prolonged steroids or after dose reduction. Check anti-HBs response after the series and revaccinate if inadequate.
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 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 Hepatitis a / b vaccine?
MediHelp rates the interaction as moderate. Dexamethasone and Hepatitis a / b vaccine 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. Corticosteroids can reduce the antibody response to inactivated hepatitis vaccines. Seroprotection may be lower, particularly with prolonged high-dose therapy.
How serious is the interaction between Dexamethasone and Hepatitis a / b vaccine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Vaccinate where indicated, ideally before starting prolonged steroids or after dose reduction. Check anti-HBs response after the series and revaccinate if inadequate.
What other medicines interact with Dexamethasone?
MediHelp also lists interactions of Dexamethasone with, for example, Bcg vaccine live, Mifepristone, Rilpivirine. The full list is on the Dexamethasone page.
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