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Drug interactions

Chloroquine + Influenza virus vaccine trivalent adjuvanted

Severity: Minor

Chloroquine and Influenza virus vaccine trivalent adjuvanted: minor 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

Chloroquine has immunomodulatory effects, but there is no convincing evidence that it meaningfully blunts the antibody response to inactivated influenza vaccine. The interaction is largely theoretical and vaccination should not be withheld.

What this interaction means in plain words

Chloroquine and Influenza virus vaccine trivalent adjuvanted have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Possible mild immunomodulatory effect of chloroquine on vaccine response; not firmly established.

What to do

Vaccinate on the usual schedule without changing chloroquine therapy. No additional monitoring is needed beyond routine care.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Chloroquine with Influenza virus vaccine trivalent adjuvanted?

MediHelp rates the interaction as minor. Chloroquine and Influenza virus vaccine trivalent adjuvanted have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Chloroquine has immunomodulatory effects, but there is no convincing evidence that it meaningfully blunts the antibody response to inactivated influenza vaccine. The interaction is largely theoretical and vaccination should not be withheld.

How serious is the interaction between Chloroquine and Influenza virus vaccine trivalent adjuvanted?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Vaccinate on the usual schedule without changing chloroquine therapy. No additional monitoring is needed beyond routine care.

What other medicines interact with Chloroquine?

MediHelp also lists interactions of Chloroquine with, for example, Cisapride, Dofetilide, Dronedarone. The full list is on the Chloroquine page.

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