A Double Blind, Double Dummy, Randomized, Comparative Study Of The Efficacy And Safety Of Valdecoxib 40 Mg Twice Daily, As Needed In The First Menstrual Cycle Day And Then Once A Day, And Piroxicam 40 Mg Once A Day In The Treatment Of Patients With Primary Dysmenorrhea

- History of primary dysmenorrhea with moderate to severe menstrual cramping pain for
which the patient took analgesic medication for at least three of six previous
menstrual cycles before enrollment

- Subjects were to have been in good health and were to have had a complete physical
exam (including a pap smear and an endovaginal or pelvic ultrasound, unless the
subject had had these examinations performed within 6 months prior to the Screening
Visit and the results were normal) prior to inclusion