United States Adopted Name
UNIQUE NONPROPRIETARY NAMES ASSIGNED TO PHARMACEUTICALS MARKETED IN THE UNITED STATES
United States Approved Name; USAN Council; United States Adopted Names
A United States Adopted Name (USAN) is a unique nonproprietary name assigned to a medication marketed in the United States. Each name is assigned by the USAN Council, which is co-sponsored by the American Medical Association (AMA), the United States Pharmacopeial Convention (USP), and the American Pharmacists Association (APhA).