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Drug interactions

Ocrelizumab + Poliovirus vaccine inactivated

Severity: Moderate

Ocrelizumab and Poliovirus vaccine inactivated: 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

Ocrelizumab depletes B cells, which can blunt antibody responses to vaccines. An inactivated poliovirus vaccine is not infectious, but the protective response may be inadequate in treated patients.

What this interaction means in plain words

Ocrelizumab and Poliovirus vaccine inactivated 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: Moderate

Why it happens

Ocrelizumab-induced CD20+ B-cell depletion reduces humoral vaccine responses.

What to do

Where possible, give inactivated vaccines at least 2 weeks before starting ocrelizumab. Consider checking antibody titres afterward in patients vaccinated during therapy.

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 Ocrelizumab with Poliovirus vaccine inactivated?

MediHelp rates the interaction as moderate. Ocrelizumab and Poliovirus vaccine inactivated 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. Ocrelizumab depletes B cells, which can blunt antibody responses to vaccines. An inactivated poliovirus vaccine is not infectious, but the protective response may be inadequate in treated patients.

How serious is the interaction between Ocrelizumab and Poliovirus vaccine inactivated?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Where possible, give inactivated vaccines at least 2 weeks before starting ocrelizumab. Consider checking antibody titres afterward in patients vaccinated during therapy.

What other medicines interact with Ocrelizumab?

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

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