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Drug interactions

Dabigatran etexilate + Posaconazole

Severity: Major

Dabigatran etexilate and Posaconazole: major 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

Posaconazole is a P-glycoprotein inhibitor and may increase dabigatran exposure, raising the risk of bleeding. The risk is greater in patients with reduced renal function.

What this interaction means in plain words

Dabigatran etexilate and Posaconazole 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.

Dabigatran etexilate belongs to Cardiovascular; Posaconazole belongs to Anti Fungals.

Evidence level: Moderate

Why it happens

Inhibition of intestinal P-glycoprotein efflux of dabigatran etexilate.

What to do

Avoid in patients with reduced creatinine clearance, consistent with dabigatran labeling. Otherwise monitor closely for bleeding and consider an alternative anticoagulant or antifungal.

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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Frequently asked questions

Can I take Dabigatran etexilate with Posaconazole?

MediHelp rates the interaction as major. Dabigatran etexilate and Posaconazole 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. Posaconazole is a P-glycoprotein inhibitor and may increase dabigatran exposure, raising the risk of bleeding. The risk is greater in patients with reduced renal function.

How serious is the interaction between Dabigatran etexilate and Posaconazole?

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 in patients with reduced creatinine clearance, consistent with dabigatran labeling. Otherwise monitor closely for bleeding and consider an alternative anticoagulant or antifungal.

What other medicines interact with Dabigatran etexilate?

MediHelp also lists interactions of Dabigatran etexilate with, for example, Defibrotide, Ketorolac, Mifepristone. The full list is on the Dabigatran etexilate page.

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