USP unit - definition of USP unit by The Free Dictionary
USP (redirected from USP unit)
Also found in: Thesaurus
United States Pharmacopoeia
(Marketing) unique selling proposition or unique selling point: a characteristic of a product that can be used in advertising to differentiate it from its competitors
United States Pharmacopeia. Also called U.S. Pharm.
References in periodicals archive
The change is partly a response to problems with contaminated heparin in 2007 and 2008, which was associated with deaths and other adverse events, and will harmonize the USP unit
dose with the World Health Organization International Standard unit dose, the FDA said.
The revised USP reference standard and unit definition for heparin is about 10% less potent than the former USP unit
. A unit is the measure of a drug's activity in the body.
The USP unit
is defined as the amount of heparin that prevents 1.0 mL of citrated sheep plasma clotting for one hour after addition of 0.2 mL of 1% [CaCl.sub.2] solution.