A member asked:

After you take an aspirin, for how long does it thin your blood?

2 doctors weighed in across 2 answers

7 to 10 days: Aspirin affects your platelet function. Platelets are the first cells to stop bleeding. They form a plug to stop further bleeding. Once you take Aspirin takes on average about 7 days to 14 days to have platelets resume their normal function providing one is also not taking advil, motrin, ibuprofen, Naproxen as well.

Answered 7/16/2018

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Dr. Marianna Post answered

Specializes in Family Medicine

Platelets: Aspirin irreversibly inhibits platelets, the life of a platelet is up to 10 days, so you can see effects of asa for up to 10 days from the time it was stopped.

Answered 7/16/2018

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