[Piroxicam versus naproxen in primary dysmenorrhea].

In this study 198 patients with primary dysmenorrhea were entered into a double-blind, randomized crossover trial to study the efficiency of piroxicam compared to naproxen on menstrual pain and associated symptoms. The dosage for piroxicam was 40 mg on the first and second day of the menstrual cycle, and if necessary an additional 20 mg on the third day. The dosage for naproxen was 1,000 mg on the first and second day, and if necessary an additional 500 mg on the third day. Piroxicam and naproxen afforded high relief from menstrual pain and associated symptoms. The drugs were well tolerated with only a few side effects of a mild nature. There were no statistically significant differences between piroxicam and naproxen.