<unk>  is used in combination with ethinyl estradiol in contraceptive patches. These patches mediate their contraceptive effects by suppressing gonadotropin levels as well as by causing changes in the cervical mucus and endometrium that diminish the likelihood of pregnancy. Available forms<unk>  is available only as a transdermal contraceptive patch in combination with ethinyl estradiol. The Ortho Evra patch is a 20 cm, once-weekly adhesive that contains 6.0 mg<unk>  and 0.75 mg ethinyl estradiol and delivers 150 µg/day<unk>  and 35 µg/day ethinyl estradiol.
Norelgestromin
Levonorgestrel
Chloroethynylnorgestrel
Gestodene
5α-Dihydrolevonorgestrel
Ethinylestradiol sulfonate
Etonogestrel
Telapristone