The United States Pharmacopoeia is a compendium of drugs published every five years by the United States Pharmacopoeial Convention . It forms the basis of enforcement actions by the U.S. Food and Drug Administration and the US Drug Enforcement Administration and is the official pharmacopoeia of the U.S.A. and several other nations.

Within the field the compendium is referred to simply as the USP. Indeed the initials USP are affixed to materials names to indicate that they conform to the specifications in the USP, and may be used medicinally.

External links

• US Pharmacopoeia