supplement 1(the national formulary) United States Pharmacopeal Convention Incorporation creator text xx Rockville United State Pharmacopeial Convention Incorporation 1989 9999 17th monographic und ENG 2069 - 2206 USP, United States Pharmacopoeia, drug standards, pharmaceutical reference 3360 / 93 - 94 / 09.07.1993 References (USP) Pharmacology -- Therapeutics 615.11 (0195-7996) 260808 20260808125508.0