Drug interactions
Dexamethasone-tobramycin + Smallpox vaccine live
Severity: Moderate
Dexamethasone-tobramycin and Smallpox vaccine live: 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
Live vaccinia vaccine can cause progressive or disseminated vaccinia in immunosuppressed patients, and corticosteroids may also reduce the response. Topical dexamethasone-tobramycin gives little systemic steroid exposure, but the severity of potential vaccinia complications warrants attention, especially with extensive or prolonged use.
What this interaction means in plain words
Dexamethasone-tobramycin and Smallpox vaccine live 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 can impair control of replicating vaccinia virus and reduce immunogenicity.
What to do
Confirm that steroid exposure is limited to the topical product and not prolonged. If systemic steroids are in use, defer the vaccine unless post-exposure need outweighs the risk.
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 Smallpox vaccine live?
MediHelp rates the interaction as moderate. Dexamethasone-tobramycin and Smallpox vaccine live 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. Live vaccinia vaccine can cause progressive or disseminated vaccinia in immunosuppressed patients, and corticosteroids may also reduce the response. Topical dexamethasone-tobramycin gives little systemic steroid exposure, but the severity of potential vaccinia complications warrants attention, especially with extensive or prolonged use.
How serious is the interaction between Dexamethasone-tobramycin and Smallpox vaccine live?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Confirm that steroid exposure is limited to the topical product and not prolonged. If systemic steroids are in use, defer the vaccine unless post-exposure need outweighs the risk.
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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