The United States Pharmacopeia (USP) is an official, independent, non-profit compendium of quality standards for medicines, dietary supplements, and food ingredients. Founded in 1820, the U.S. Pharmacopeial Convention (USP) establishes public standards regarding the identity, strength, quality, and purity of these substances. While the organization itself is non-governmental, its documentary standards are legally enforceable in the United States by the U.S. Food and Drug Administration (FDA). [1, 2, 3]
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