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Drug interactions

Influenza virus vaccine trivalent + Mycophenolate mofetil

Severity: Moderate

Influenza virus vaccine trivalent and Mycophenolate mofetil: moderate 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

Mycophenolate may reduce antibody titres after inactivated trivalent influenza vaccine. The vaccine remains worthwhile because influenza can be severe in immunosuppressed patients.

What this interaction means in plain words

Influenza virus vaccine trivalent and Mycophenolate mofetil can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Evidence level: High

Why it happens

IMPDH inhibition limits lymphocyte proliferation and so weakens vaccine-induced antibody production.

What to do

Give the inactivated vaccine annually and continue mycophenolate. Consider high-dose vaccine where available and ensure contacts are vaccinated.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Influenza virus vaccine trivalent with Mycophenolate mofetil?

MediHelp rates the interaction as moderate. Influenza virus vaccine trivalent and Mycophenolate mofetil can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Mycophenolate may reduce antibody titres after inactivated trivalent influenza vaccine. The vaccine remains worthwhile because influenza can be severe in immunosuppressed patients.

How serious is the interaction between Influenza virus vaccine trivalent and Mycophenolate mofetil?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give the inactivated vaccine annually and continue mycophenolate. Consider high-dose vaccine where available and ensure contacts are vaccinated.

What other medicines interact with Mycophenolate mofetil?

MediHelp also lists interactions of Mycophenolate mofetil with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Mycophenolate mofetil page.

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