title: Comparison of the pharmacokinetics of oxycodone administered in three Percocet formulations.
abstract: This randomized, open-label, three-period crossover study compared the single-dose pharmacokinetics of three dose levels of oxycodone in combination with acetaminophen (5 mg/325 mg, 7.5 mg/500 mg, or 10 mg/650 mg) in healthy volunteers. Serial 24-hour blood samples were collectedfrom 23 fasting subjects after drug administration. The individual dose levels were evaluated on 3 different days, which were separated by washout periods of at least 7 days, in each subject. Oxycodone AUC(0-t), AUC(0-infinity), and Cmax were dose dependent, whereas tma and t(1/2) were not. The most frequently reported adverse events were dizziness, nausea, headache, pruritus, and vomiting. Most adverse events were mild, and all were self-limiting. Only dizziness occurred in a dose-related manner. Increasing dose levels of oxycodone/acetaminophen provides proportional increases in oxycodone Cmax and AUC. Adverse events were predictable based on the opioid pharmacologic actions of this agent.
authors.affiliation: Endo Pharmaceuticals, Inc., Chadds Ford, Pennsylvania 19317, USA.
authors.forename: Arnold R
authors.initials: AR
authors.lastname: Gammaitoni
authors.forename: Matthew W
authors.initials: MW
authors.lastname: Davis
mesh_terms: D000082:Acetaminophen / Q000493:pharmacokinetics; D000328:Adult; D018712:Analgesics, Non-Narcotic / Q000493:pharmacokinetics; D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics*; D019540:Area Under Curve; D002626:Chemistry, Pharmaceutical; D018592:Cross-Over Studies; D004311:Double-Blind Method; D004338:Drug Combinations; D005260:Female; D006207:Half-Life; D006801:Humans; D008297:Male; D008875:Middle Aged; D010098:Oxycodone / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics*; D011446:Prospective Studies
chemical_list: D018712:Analgesics, Non-Narcotic; D000701:Analgesics, Opioid; D004338:Drug Combinations; D000082:Acetaminophen; D010098:Oxycodone