Drug interactions
Hydroxyurea + Tisagenlecleucel
Severity: Major
Hydroxyurea and Tisagenlecleucel: 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 a myelosuppressive cytotoxic that can reduce lymphocyte counts and may impair collection and expansion of T cells used for CAR-T manufacture. After infusion, further immunosuppression adds to infection risk and may affect CAR-T persistence.
What this interaction means in plain words
Hydroxyurea and Tisagenlecleucel 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 belongs to Miscellaneous; Tisagenlecleucel belongs to Oncology.
Why it happens
Cytotoxic and myelosuppressive effects on lymphocytes reduce T-cell fitness and add to immunosuppression, which raises infection risk.
What to do
Follow the prescribing information for washout before leukapheresis and lymphodepletion, and avoid hydroxyurea around infusion unless clearly needed. Monitor blood counts and for infection after infusion.
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 Tisagenlecleucel, 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
Other interactions of Tisagenlecleucel
Frequently asked questions
Can I take Hydroxyurea with Tisagenlecleucel?
MediHelp rates the interaction as major. Hydroxyurea and Tisagenlecleucel 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 a myelosuppressive cytotoxic that can reduce lymphocyte counts and may impair collection and expansion of T cells used for CAR-T manufacture. After infusion, further immunosuppression adds to infection risk and may affect CAR-T persistence.
How serious is the interaction between Hydroxyurea and Tisagenlecleucel?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Follow the prescribing information for washout before leukapheresis and lymphodepletion, and avoid hydroxyurea around infusion unless clearly needed. Monitor blood counts and for infection after infusion.
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.
