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Drug interactions

Rucaparib + Ticlopidine

Severity: Minor

Rucaparib and Ticlopidine: 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 inhibitor of CYP3A4 and CYP2C19, among others. Ticlopidine is not a sensitive substrate of CYP3A4, but it is activated through CYP2C19 and CYP2B6 pathways, so any change in exposure or effect is uncertain.

What this interaction means in plain words

Rucaparib and Ticlopidine 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 belongs to Oncology; Ticlopidine belongs to Cardiovascular.

Evidence level: Low

Why it happens

Possible weak inhibition of ticlopidine metabolism by rucaparib; not well characterized.

What to do

No routine adjustment is needed; monitor for ticlopidine adverse effects and blood counts as usual.

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 Rucaparib with Ticlopidine?

MediHelp rates the interaction as minor. Rucaparib and Ticlopidine 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 inhibitor of CYP3A4 and CYP2C19, among others. Ticlopidine is not a sensitive substrate of CYP3A4, but it is activated through CYP2C19 and CYP2B6 pathways, so any change in exposure or effect is uncertain.

How serious is the interaction between Rucaparib and Ticlopidine?

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 adjustment is needed; monitor for ticlopidine adverse effects and blood counts as usual.

What other medicines interact with Ticlopidine?

MediHelp also lists interactions of Ticlopidine with, for example, Mavacamten, Abrocitinib, Acetylsalicylic acid. The full list is on the Ticlopidine page.

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