Analgesic Efficacy of Acetaminophen 1000 mg, Acetaminophen 2000 mg, and the Combination of Acetaminophen 1000 mg and Codeine Phosphate 60 mg versus Placebo in Acute Postoperative Pain

Acetaminophen (APAP) 1000 mg, APAP 2000 mg, the combination of APAP 1000 mg plus codeine phosphate 60 mg (APAPCOD), and placebo (PBO) were compared in a 6‐hour, randomized, single‐dose, double‐blind, parallel‐group analgesic trial. All active treatments were statistically superior (p