Evaluation of a new triphasic oral contraceptive in private practice

H S EllsworthM K Curtis


We evaluated the clinical and metabolic effects of a new triphasic regimen developed in the continuing attempt to reduce the dose of estrogen and progestogen in oral contraceptives. A combination of ethinyl estradiol (EE) and levonorgestrel (LNg) was used (six tablets with 30 micrograms EE + 50 micrograms LNg, five tablets with 40 micrograms EE + 75 micrograms LNg, and 10 tablets with 30 micrograms EE + 125 micrograms LNg), also known as Triphasil (Wyeth). In a private practice, 409 subjects participated in 7,286 treatment cycles. Three pregnancies occurred, all due to subject failure. Menstrual regulation was excellent and the incidence of side effects extremely low. Withdrawals from the study for possibly drug-related medical reasons totaled 9.0% through 56 cycles of treatment. Metabolic changes also were evaluated in 14 of these women over a 6-month period. The only statistically significant increase in carbohydrate values occurred at 6 months. The mean glucose level at 30 minutes of the oral glucose tolerance test was above the baseline mean value, but serum insulin levels showed no statistically significant deviation. Lipid values presented are total lipids, total cholesterol, triglycerides, alpha-, beta-, and pre-beta-lip...Continue Reading


May 1, 1988·Canadian Family Physician Médecin De Famille Canadien·A V Pavilanis
Apr 24, 2004·Contraception·José Mendes AldrighiGeraldo Rodrigues De Lima

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