Drug interactions
Dengue vaccine + Dexamethasone
Severity: Major
Dengue vaccine and Dexamethasone: major interaction.
Last updated Sources: US FDA label
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
Dengue vaccine is a live attenuated vaccine, and immunosuppressive corticosteroid doses can blunt the immune response and increase the risk of vaccine-related infection. Dexamethasone at pharmacologic doses is generally considered immunosuppressive.
What this interaction means in plain words
Dengue vaccine and Dexamethasone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Corticosteroid-induced immunosuppression reduces vaccine immunogenicity and may allow uncontrolled replication of live vaccine virus.
What to do
Avoid live vaccination during immunosuppressive corticosteroid therapy and delay vaccination until after the recommended interval following treatment per product labeling.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
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 Dengue vaccine with Dexamethasone?
MediHelp rates the interaction as major. Dengue vaccine and Dexamethasone can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Dengue vaccine is a live attenuated vaccine, and immunosuppressive corticosteroid doses can blunt the immune response and increase the risk of vaccine-related infection. Dexamethasone at pharmacologic doses is generally considered immunosuppressive.
How serious is the interaction between Dengue vaccine and Dexamethasone?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid live vaccination during immunosuppressive corticosteroid therapy and delay vaccination until after the recommended interval following treatment per product labeling.
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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