A member asked:

How long does naproxen last as a blood thinner?

A doctor has provided 1 answer

About 24 hours: Naproxen is the brand name for naprosyn (naproxen) a non-steroidal anti-inflammatory medication. It reversibly inactivates new platlets for about 24 hours. This means the blood is "thinned" or less likely to clot during that 24 hours. Aspirin alternatively irreversibly inactivates platlets so they are less sticky for about 7 days. In both cases these are generalizations that differ person to person.

Answered 6/4/2019

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