 The e-poster 816 titled Intravenous Tramadol is Effective in Management of Postoperative Pain Following Abdominoplasty: A 3-arm Randomized Controlled Trial presents data from the Phase 3 abdominoplasty study and can be found here. This Phase 3, multicenter, double-blind, placebo and active controlled trial evaluated the efficacy and safety of IV tramadol in 370 patients following abdominoplasty surgery. Patients were randomized to a postoperative regimen of IV tramadol 50 mg, placebo or IV morphine 4 mg. The primary endpoint of the study assessed the analgesic efficacy of IV tramadol compared to placebo as measured by SPID24 sum of pain intensity differences through 24 hours post first dose. 