title: A kinetic model of benzoylecgonine disposition after cocaine administration in humans.
abstract: Cocaine (C) and benzoylecgonine (BZ) plasma levels and urinary excretion rate data from a series of intravenous cocaine studies were used to develop a kinetic model for C and BZ, with the main objective of characterizing BZ disposition. Kinetic analyses were made with the CONSAM 30 computer program. Under assumptions of the model, calculated parameters indicated a BZ distribution volume of 50 L, a half-time for BZ formation of 1.9 h and a BZ excretion half-time of 4.7 h. The model may eventually provide a basis for interpretation of analytical data on isolated samples of plasma or urine.
authors.affiliation: Department of Medicine, Northwestern University Medical School.
authors.forename: J J
authors.initials: JJ
authors.lastname: Ambre
authors.forename: T J
authors.initials: TJ
authors.lastname: Connelly
authors.forename: T I
authors.initials: TI
authors.lastname: Ruo
mesh_terms: D000328:Adult; D003042:Cocaine / Q000031:analogs & derivatives* / Q000493:pharmacokinetics*; D006207:Half-Life; D006801:Humans; D008297:Male; D008954:Models, Biological; D012984:Software
chemical_list: C005618:benzoylecgonine; D003042:Cocaine