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Drug interactions

Dexamethasone + Meningococcal a c y and w-135 polysaccharide vaccine combined

Severity: Moderate

Dexamethasone and Meningococcal a c y and w-135 polysaccharide vaccine combined: 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 may reduce the antibody response to inactivated meningococcal vaccine, resulting in less protection. The vaccine is still safe to administer.

What this interaction means in plain words

Dexamethasone and Meningococcal a c y and w-135 polysaccharide vaccine combined 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.

Evidence level: Low

Why it happens

Glucocorticoid-mediated immunosuppression reduces antibody production after vaccination.

What to do

Vaccinate as indicated, ideally before prolonged steroid therapy begins. Consider revaccination if given during high-dose treatment.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Dexamethasone with Meningococcal a c y and w-135 polysaccharide vaccine combined?

MediHelp rates the interaction as moderate. Dexamethasone and Meningococcal a c y and w-135 polysaccharide vaccine combined 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 may reduce the antibody response to inactivated meningococcal vaccine, resulting in less protection. The vaccine is still safe to administer.

How serious is the interaction between Dexamethasone and Meningococcal a c y and w-135 polysaccharide vaccine combined?

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 as indicated, ideally before prolonged steroid therapy begins. Consider revaccination if given during high-dose treatment.

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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