Drug interactions
Dexamethasone-tobramycin + Influenza a vaccine
Severity: Moderate
Dexamethasone-tobramycin and Influenza a 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 above physiologic doses can blunt the antibody response to the H5N1 vaccine. Protection may therefore be reduced.
What this interaction means in plain words
Dexamethasone-tobramycin and Influenza a 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
Corticosteroid immunosuppression reduces the immune response to vaccine antigens.
What to do
Where possible, vaccinate before starting immunosuppressive corticosteroid therapy or when the dose is low. Do not rely on the vaccine for full protection in patients on high-dose steroids.
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-tobramycin
Frequently asked questions
Can I take Dexamethasone-tobramycin with Influenza a vaccine?
MediHelp rates the interaction as moderate. Dexamethasone-tobramycin and Influenza a 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 above physiologic doses can blunt the antibody response to the H5N1 vaccine. Protection may therefore be reduced.
How serious is the interaction between Dexamethasone-tobramycin and Influenza a 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 immunosuppressive corticosteroid therapy or when the dose is low. Do not rely on the vaccine for full protection in patients on high-dose steroids.
What other medicines interact with Dexamethasone-tobramycin?
MediHelp also lists interactions of Dexamethasone-tobramycin with, for example, Capreomycin, Carboplatin, Ciprofloxacin. The full list is on the Dexamethasone-tobramycin page.
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