They say that some painkillers (i.e. Ibuprofen) thin the blood.

My question is: how much do you need to take before it really thins your blood?
The recommended dosage (two capsules) will be enough?

aspirin, which is a nonsteroidal antiinflammatory drug, like ibuprofen, is also an antiplatelet drug (that is, it thins blood). 75 mg/day are enough for that effect (anti-pain effect is achieved at 500 mg). ibuprofen cannot be used as an antiplatelet drug.

edut : aspirin is NOT an anticoagulant. it is an antiplatelet drug.

When people talk about thinning the blood they mean the blood does not clot as well as usual.

The proper name for something that does this is an anticoagulant.

Aspirin is a very powerful anticoagulant, so much that it often causes bleeding in the stomach. And it is why aspirin is often taken in small doses to stop the risk of a stroke, which is a blood clot in the brain.

Ibuprofen is an anticoagulant but not as powerful as aspirin. Two capsules will have a very small anticoagulant effect.

I'll share my experience with Ibuprofen. 800 mg @ 3x/day at 1st, myself reduced it to 2x after few months, then to 1x later. Also, always had a pill in morning w/o food (NOT good idea - don't do that). For this problem, I'm not sure it helped much, but I was scared NOT to take it; my buttocks had been in so much horrid pain that I could only baby-step walk, and only very gradually got better. NOTE: I have much confidence in Ibuprofen as a pain-killer; I've used it temporarily for many things and it's good (including an earlier accident hurting my neck) and would get a 5, but my problem here was so bad I don't think much could help me but time - and physical therapy (started way too late). The side-effects of long-term use are not pretty. GI problems are horrible. I've gone from 1 horrid problem to another. Side effects: Unsure yet: Acid-reflux/laryngopharyngeal reflux, chronic gastritis (definitely) and/or bile gastritis. (You don't ever want these problems.). I purchase Ibuprofen through reputable http://www.lipmanpharmacy.com/ they've been very reliable so far. Check this FDA link about Ibuprofen http://google2.fda.gov/search?client=FDAgov&site=FDAgov-Recalls-Safety|FDAgov-Consumers|FDAgov-WarningLetters-ICECI|FDAgov-ImportAlerts-Industry|FDAgov-MedWatch-Safety|FDAgov-Section-Drugs&output=xml_no_dtd&proxystylesheet=FDAgov&ie=UTF-8&oe=UTF-8&as_q=ibuprofen&num=20&btnG=Search&as_epq=&as_oq=&as_eq=&restrictBox=FDAgov-Recalls-Safety&restrictBox=FDAgov-Consumers&restrictBox=Medwatch&restrictBox=FDAgov-WarningLetters-ICECI&restrictBox=FDAgov-ImportAlerts-Industry&restrictBox=FDAgov-Section-Drugs&lr=&as_ft=i&as_filetype=&as_occt=any&as_dt=i&as_sitesearch=&sort=date
Hope i helped.

I don't think ibuprofen thins you blood you probally getting mixed up with aspirin, aspirin can thin ur blood at low doses.

Yes, Aspirin.

if your under 6 one is recomended. !