• S Honig and K A Murray.
• J Clin Pharmacol. 1981 Oct 1; 21 (10): 443-8.

AbstractZomepirac sodium, a new, nonnarcotic analgesic agent, was compared with the combination of propoxyphene/acetaminophen in a placebo-controlled, double-blind, single-dose study in 196 hospitalized postsurgical patients with pain severe enough to require a prescription analgesic. Patients received 100 mg zomepirac sodium, 50 mg zomepirac sodium, 100 mg propoxyphene napsylate with 650 mg acetaminophen, or placebo. Total pain relief during the 6-hour observation period showed that 100 mg zomepirac sodium was significantly more effective than the propoxyphene combination. All active drugs were superior to placebo. Percentages of patients requiring remedication before the end of the study were: 77 per cent for placebo, 48 per cent for propoxyphene/acetaminophen, 43 per cent for 50 mg zomepirac sodium, and 29 per cent for 100 mg zomepirac sodium. The numbers of patients reporting side effects were not significantly different among the treatment groups. These results confirm those of other single-dose pain studies which showed 100 mg zomepirac sodium significantly more efficacious than the propoxyphene/acetaminophen combination.

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