Overview Pharmacokinetics and Metabolism of Hydrocodone Bitartrate Controlled-Release (HC-CR) in Subjects With Hepatic Impairment Status: Completed Trial end date: 2011-05-01 Target enrollment: Participant gender: Summary Determine the influence of hepatic impairment on the pharmacokinetics and metabolism of Hydrocodone Bitartrate Extended-Release (HC-ER) 20 mg capsules Phase: Phase 1 Details Lead Sponsor: Zogenix, Inc.Treatments: Hydrocodone