[Nimesulide in the treatment of primary dysmenorrhea. Comparative clinical evaluation with mefenamic acid and fentiazac]. / Nimesulide en el tratamiento de la dismenorrea primaria. Evaluación clínica comparativa con ácido mefenámico y fentiazac.

Sixty patients with primary dismenorrhea were treated: 20 with nimesulide, 20 with fentiazac and 20 with mefenamic acid during three consecutive cycles under double blind design. The doses used in each group were: nimesulide or fentiazac 100 mg, every 12 hrs., mefenamic acid 500 mg. every 8 hrs. in all cases during 5 days, beginning a day before the beginning, of the menstruation. The pain evolution and the symptoms were evaluated three times a day using a scale from 0 to 10, so measure its intensity. Concluding, the nimesulide is useful in the treatment of pain associated with primary dismenorrhea, answering with little statistical advantage over the fentiazac and with bigger statistical advantage over the mefenamic acid. The tolerance was excellent with the three drugs studied.