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Journal of Clinical Pathology logoLink to Journal of Clinical Pathology
. 1970 Sep;23(6):522–525. doi: 10.1136/jcp.23.6.522

A comparison of an effect of different anti-inflammatory drugs on human platelets

J R O'Brien 1, Wendy Finch 1, Elizabeth Clark 1
PMCID: PMC476822  PMID: 5476879

Abstract

Different doses of aspirin, indomethacin, paracetamol, benorylate, and sodium salicylate were taken by four volunteers. The minimal dose that altered a platelet function test and the persistence of this alteration at different dose levels were studied. Minute doses of indomethacin (0·035 mg/kg) were effective but the effect of even a large single dose did not persist. A tenth of the therapeutic dose of aspirin (1 mg/kg) was effective, and higher doses altered the platelets' function for several days. Benorylate in a high therapeutic dose gave aspirin-like results. Paracetamol and sodium salicylate were relatively inactive. The persistence of the aspirin effect may be related to the acetyl group. These findings are surveyed in relation to a general theory of the action of anti-inflammatory drugs.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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