Overview Study to Evaluate the Pharmacokinetics of Mucinex 600 mg Extended-release Bi-layer Tablet in Healthy Volunteers Status: Completed Trial end date: 2009-06-15 Target enrollment: Participant gender: Summary Evaluate the Pharmacokinetics of Mucinex® 600 mg Extended-Release Bi-Layer Tablet in Normal Healthy Subjects Phase: Phase 1 Details Lead Sponsor: Reckitt Benckiser Inc.Treatments: Chlorpheniramine, phenylpropanolamine drug combinationGuaifenesinPhenylpropanolamine