Brands
Seasonale is produced by Duramed Pharmaceuticals, a subsidiary of Barr Pharmaceuticals; Barr Pharmaceuticals also produces the same medicine as a generic called Jolessa. Quasense is the generic version produced by Watson Pharmaceuticals. Seasonale contains 30 micrograms of ethinylestradiol and 150 micrograms of levonorgestrel in each active pill. Seasonale reduces the frequency of menstrual periods from thirteen per year to four per year by changing the regimen of active pills from 21 to 84. Each package has 84 active pills and seven placebo pills to be taken at the end of the active cycle.
Seasonique, also produced by Duramed Pharmaceuticals, has active pills and packaging identical to Seasonale, but replaces the placebo week with a low-dosage week of estrogen.
Lybrel is produced by Wyeth Pharmaceuticals. It contains 90 mcg levonorgestrel and 20 mcg ethinyl estradiol in each pill, and is designed to be taken continuously with no placebos.
Read more about this topic: Extended Cycle Combined Hormonal Contraceptive
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