Drug interactions
Dexamethasone + Meningococcal group b vaccine
Severity: Moderate
Dexamethasone and Meningococcal group 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
Systemic corticosteroids at immunosuppressive doses can blunt the antibody response to inactivated vaccines. The vaccine is not harmful in this setting, but protection may be reduced.
What this interaction means in plain words
Dexamethasone and Meningococcal group 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 the immune response to vaccination.
What to do
Where possible, vaccinate before starting prolonged immunosuppressive dexamethasone doses or after the course ends. If given during therapy, still vaccinate in at-risk patients and consider checking the response.
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 Meningococcal group b vaccine?
MediHelp rates the interaction as moderate. Dexamethasone and Meningococcal group 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. Systemic corticosteroids at immunosuppressive doses can blunt the antibody response to inactivated vaccines. The vaccine is not harmful in this setting, but protection may be reduced.
How serious is the interaction between Dexamethasone and Meningococcal group 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: Where possible, vaccinate before starting prolonged immunosuppressive dexamethasone doses or after the course ends. If given during therapy, still vaccinate in at-risk patients and consider checking the response.
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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