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Drug interactions

Human papillomavirus vaccine + Ocrelizumab

Severity: Moderate

Human papillomavirus vaccine and Ocrelizumab: 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 and markedly reduces antibody responses to vaccines. The non-live HPV vaccine is safe but may fail to induce protective immunity.

What this interaction means in plain words

Human papillomavirus vaccine and Ocrelizumab 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.

Human papillomavirus vaccine belongs to Miscellaneous; Ocrelizumab belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Anti-CD20 B-cell depletion impairs humoral response to vaccination.

What to do

Give HPV vaccine at least several weeks before starting ocrelizumab where feasible; if given during therapy, time it before the next infusion and recognize that response may be poor.

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 Human papillomavirus vaccine with Ocrelizumab?

MediHelp rates the interaction as moderate. Human papillomavirus vaccine and Ocrelizumab 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 and markedly reduces antibody responses to vaccines. The non-live HPV vaccine is safe but may fail to induce protective immunity.

How serious is the interaction between Human papillomavirus vaccine and Ocrelizumab?

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 HPV vaccine at least several weeks before starting ocrelizumab where feasible; if given during therapy, time it before the next infusion and recognize that response may be poor.

What other medicines interact with Human papillomavirus vaccine?

MediHelp also lists interactions of Human papillomavirus vaccine with, for example, Antithymocyte globulin equine, Antithymocyte globulin rabbit, Atidarsagene autotemcel. The full list is on the Human papillomavirus vaccine page.

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