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Drug interactions

Chloroquine + Rucaparib

Severity: Minor

Chloroquine and Rucaparib: 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

Rucaparib is a weak CYP3A4 inhibitor and could modestly increase chloroquine concentrations. The effect is likely small.

What this interaction means in plain words

Chloroquine and Rucaparib 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 belongs to Anti Parasitic; Rucaparib belongs to Oncology.

Evidence level: Low

Why it happens

Rucaparib inhibits CYP3A4 and may slightly reduce chloroquine metabolism.

What to do

No routine dose change is required. Monitor for chloroquine adverse effects, including QT prolongation if other risk factors are present.

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 Rucaparib?

MediHelp rates the interaction as minor. Chloroquine and Rucaparib have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Rucaparib is a weak CYP3A4 inhibitor and could modestly increase chloroquine concentrations. The effect is likely small.

How serious is the interaction between Chloroquine and Rucaparib?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine dose change is required. Monitor for chloroquine adverse effects, including QT prolongation if other risk factors are present.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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