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Drug interactions

Rabies vaccine chick embryo cell derived + Tacrolimus

Severity: Major

Rabies vaccine chick embryo cell derived and Tacrolimus: 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

Tacrolimus may blunt the immune response to the inactivated rabies vaccine. Because rabies is fatal, an inadequate response is clinically important.

What this interaction means in plain words

Rabies vaccine chick embryo cell derived and Tacrolimus 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.

Evidence level: Moderate

Why it happens

Calcineurin inhibition suppresses T-cell dependent antibody production.

What to do

Give the complete series and immunoglobulin when exposure has occurred, then measure neutralizing antibody titers. Do not delay post-exposure prophylaxis.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Rabies vaccine chick embryo cell derived with Tacrolimus?

MediHelp rates the interaction as major. Rabies vaccine chick embryo cell derived and Tacrolimus 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. Tacrolimus may blunt the immune response to the inactivated rabies vaccine. Because rabies is fatal, an inadequate response is clinically important.

How serious is the interaction between Rabies vaccine chick embryo cell derived and Tacrolimus?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give the complete series and immunoglobulin when exposure has occurred, then measure neutralizing antibody titers. Do not delay post-exposure prophylaxis.

What other medicines interact with Tacrolimus?

MediHelp also lists interactions of Tacrolimus with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Cidofovir. The full list is on the Tacrolimus page.

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