Acetaminophen/Hydrocodone/Promethazine

This is a double-blind, randomized, multiple-dose, placebo- and positive-controlled study of CL-108 (hydrocodone 7.5 mg/APAP 325 mg, promethazine 12.5 mg) in patients with moderate to severe pain following surgical removal of impacted third molar teeth.
A positive control ( Norco, a commercial formulation of hydrocodone 7.5 mg/APAP 325 mg) was included to determine the anti-emetic effects of CL-108. The efficacy of CL-108 was also evaluated to placebo for the relief of pain.