Drug interactions
Hydroxyurea + Measles mumps and rubella vaccine live
Severity: Major
Hydroxyurea and Measles mumps and rubella 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 impairs immune function, so the live MMR vaccine may be less effective. It may also cause vaccine-virus infection in an immunocompromised patient.
What this interaction means in plain words
Hydroxyurea and Measles mumps and rubella 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
Immunosuppression impairs the vaccine response and permits replication of live virus.
What to do
Avoid live MMR vaccination during hydroxyurea therapy unless specialist assessment judges the patient adequately immunocompetent. Otherwise vaccinate before starting treatment or after immune recovery.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Hydroxyurea and Measles mumps and rubella vaccine live, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Hydroxyurea
Frequently asked questions
Can I take Hydroxyurea with Measles mumps and rubella vaccine live?
MediHelp rates the interaction as major. Hydroxyurea and Measles mumps and rubella 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 impairs immune function, so the live MMR vaccine may be less effective. It may also cause vaccine-virus infection in an immunocompromised patient.
How serious is the interaction between Hydroxyurea and Measles mumps and rubella 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 MMR vaccination during hydroxyurea therapy unless specialist assessment judges the patient adequately immunocompetent. Otherwise vaccinate before starting treatment or after immune recovery.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
