1 results match your criteria: "University of Iowa Health Care E330 GH[Affiliation]"
Analgesic efficacy and safety of tramadol/ acetaminophen combination tablets (Ultracet) in treatment of chronic low back pain: a multicenter, outpatient, randomized, double blind, placebo controlled trial.
J Rheumatol
December 2004
Division of Rheumatology, Roy and Lucille Carver College of Medicine, University of Iowa Health Care E330 GH, 200 Hawkins Drive, Iowa City, IA 52242, USA.
Objective: To evaluate the analgesic efficacy and safety of tramadol 37.5 mg/acetaminophen 325 mg (tramadol/APAP) combination tablets for treatment of chronic low back pain (LBP).
Methods: This 91 day, multicenter, outpatient, randomized, double blind, placebo controlled study enrolled 338 patients with chronic LBP requiring daily medication for > or = 3 months.