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Drug interactions

Cilostazol + Vorapaxar

Severity: Major

Cilostazol and Vorapaxar: major interaction.

Last updated Sources: UK SmPC

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

Both drugs inhibit platelet function, so combining them can increase bleeding risk. Vorapaxar is also contraindicated in patients with prior stroke, TIA or intracranial hemorrhage.

What this interaction means in plain words

Cilostazol and Vorapaxar can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Evidence level: Moderate

Why it happens

Additive antiplatelet effects: vorapaxar blocks PAR-1 thrombin receptors while cilostazol inhibits PDE3 in platelets.

What to do

Avoid combining unless benefit clearly outweighs risk, and monitor closely for bleeding and hemoglobin changes. Do not use in patients with prior intracranial hemorrhage.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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References

Frequently asked questions

Can I take Cilostazol with Vorapaxar?

MediHelp rates the interaction as major. Cilostazol and Vorapaxar can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs inhibit platelet function, so combining them can increase bleeding risk. Vorapaxar is also contraindicated in patients with prior stroke, TIA or intracranial hemorrhage.

How serious is the interaction between Cilostazol and Vorapaxar?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining unless benefit clearly outweighs risk, and monitor closely for bleeding and hemoglobin changes. Do not use in patients with prior intracranial hemorrhage.

What other medicines interact with Cilostazol?

MediHelp also lists interactions of Cilostazol with, for example, Abrocitinib, Anagrelide, Betrixaban. The full list is on the Cilostazol page.

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