Drug interactions
Hydroxyurea + Measles mumps rubella and varicella vaccine live
Severity: Major
Hydroxyurea and Measles mumps rubella and varicella vaccine live: major 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
Hydroxyurea is myelosuppressive and immunosuppressive, so a live-attenuated vaccine given during therapy may fail to produce adequate immunity. The replicating vaccine virus may also cause disseminated infection in an immunocompromised patient.
What this interaction means in plain words
Hydroxyurea and Measles mumps rubella and varicella vaccine live 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
Drug-induced immunosuppression impairs the immune response to the vaccine and permits uncontrolled replication of the live vaccine strain.
What to do
Avoid live vaccines during hydroxyurea therapy where possible and use inactivated alternatives. Give needed live vaccines before starting treatment, or defer them until immune recovery as judged by the specialist.
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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Other interactions of Hydroxyurea
Frequently asked questions
Can I take Hydroxyurea with Measles mumps rubella and varicella vaccine live?
MediHelp rates the interaction as major. Hydroxyurea and Measles mumps rubella and varicella vaccine live 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. Hydroxyurea is myelosuppressive and immunosuppressive, so a live-attenuated vaccine given during therapy may fail to produce adequate immunity. The replicating vaccine virus may also cause disseminated infection in an immunocompromised patient.
How serious is the interaction between Hydroxyurea and Measles mumps rubella and varicella vaccine live?
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 vaccines during hydroxyurea therapy where possible and use inactivated alternatives. Give needed live vaccines before starting treatment, or defer them until immune recovery as judged by the specialist.
What other medicines interact with Hydroxyurea?
MediHelp also lists interactions of Hydroxyurea with, for example, Didanosine, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel. The full list is on the Hydroxyurea page.
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