Safety and Efficacy of Tapentadol Immediate Release (IR) and Oxycodone IR for Treatment of Acute Post-op Pain Following Elective Arthroscopic (Surgery Using a Thin Flexible Scope) Shoulder Surgery

First dose: one 50 mg capsule (a re-dose of 50 mg is permitted as soon as one hour after the first dose on Day 1, if needed) Subsequent doses: one or two capsules (50 mg or 100 mg) every 4 to 6 hours as needed

First dose: one 5 mg capsule (a re-dose of 5 mg is permitted as soon as one hour after the first dose on Day 1, if needed Subsequent doses: one or two capsules (5 mg or 10 mg) every 4 to 6 hours as needed