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Does aspirin increase inr?

See the DrugPatentWatch profile for aspirin

How does aspirin affect INR levels?

Aspirin is a commonly used medication that can impact blood clotting and INR (International Normalized Ratio) levels, especially in people taking anticoagulant therapy [1].

Why can aspirin increase INR levels?

Aspirin acts as an antiplatelet agent by inhibiting platelet aggregation, which can lead to an increased risk of bleeding [2]. At the same time, it can also affect the body's clotting factors, increasing INR levels in some individuals. This is because aspirin inhibits the production of thromboxane A2, a powerful platelet activator, and also affects the production of vitamin K-dependent clotting factors [3].

When does aspirin increase INR levels?

Aspirin can increase INR levels in people who:

* Take high doses of aspirin (more than 100 mg/day)
* Have a history of bleeding or peptic ulcers
* Have liver disease or malabsorption
* Are taking warfarin or other blood thinners
* Have a history of clotting disorders

Can other medication interact with aspirin to increase INR levels?

Yes, other medications can interact with aspirin to increase INR levels. These include:

* Warfarin (Coumadin)
* Clopidogrel (Plavix)
* Prasugrel (Effient)
* Dabigatran (Pradaxa)
* Apixaban (Eliquis)
* Rivaroxaban (Xarelto)

What can you do if aspirin increases your INR levels?

If you are taking aspirin and experience an increase in INR levels, you should:

* Consult your doctor or healthcare provider for guidance on adjusting your aspirin dose or replacing it with an alternative medication.
* Monitor your blood work closely to ensure safe and effective anticoagulation therapy.
* Inform your healthcare provider about any changes in your medical history or medications.

References

[1] https://www.drugpatentwatch.com
[2] "Aspirin" by the Mayo Clinic, https://www.mayoclinic.org/drugs-supplements-aspirin/art-20046782
[3] "Aspirin and Inhibitors of Platelet Function" by the American Heart Association, https://www.ahajournals.org/doi/full/10.1161/01.res.0000211441.12441.5d

Sources:

1. DrugPatentWatch.com
2. Mayo Clinic
3. American Heart Association



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