I to 12- ugers forsøg var andelen af patienter med endoskopisk mavesår ikke signifikant forskellig mellem placebo og celecoxib 200 mg 2 gange daglig eller 400 mg 2 gange daglig.
In two of the 12-week studies the percentage of patients with endoscopic gastroduodenal ulceration were not significantly different between placebo and celecoxib 200 mg BID and 400 mg BID.