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Single dose and multidose analgesic study of ibuprofen and meclofenamate sodium after third molar surgery.

Author(s): Hersh EV, Cooper S, Betts N, Wedell D, MacAfee K, Quinn P, Lamp C, Gaston G, Bergman S, Henry E

Affiliation(s): University of Pennsylvania School of Dental Medicine, Temple University School of Dentistry.

Publication date & source: 1993-12, Oral Surg Oral Med Oral Pathol., 76(6):680-7.

Publication type: Clinical Trial; Comparative Study ; Randomized Controlled Trial; Research Support, Non-U.S. Gov't

The purpose of this study was to compare the analgesic efficacy and safety of meclofenamate sodium with ibuprofen after dental impaction surgery. This study was double-blind and used a unique methodology. Patients (N = 254) were first randomized into the single dose phase of the study that included placebo, meclofenamate 50 mg, meclofenamate 100 mg, ibuprofen 200 mg, and ibuprofen 400 mg, followed by a 7-day multidose phase in which patients in the placebo group were rerandomized into one of the active treatment cells. In the single dose phase, all active treatments were significantly more efficacious than placebo for every summary analgesic measure. A positive dose-response was seen for both active drugs with meclofenamate 100 mg and ibuprofen 400 mg exhibiting the greatest efficacy for pain relief, pain reduction, time to remedication, and overall evaluation. Side effects were reported by 26 patients. They were evenly distributed among treatment groups with headache and drowsiness being the most common. During the multidose phase, there were only small differences in efficacy measures among active treatment groups. However, meclofenamate produced a higher incidence of stomach cramps and diarrhea than did ibuprofen (8.8% and 7.2% versus 0.8% and 0.8%). This study indicates that higher doses of nonsteroidal anti-inflammatory drugs are most effective immediately after surgery and that lower doses of these drugs can be used after the first postoperative day. The side effect profile of nonsteroidal anti-inflammatory analgesics is best observed with the use of a multidose study design.

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