<unk>  should not be used in women with liver disease, breast cancer, or blood clots. Women who believe they may already be pregnant or those with vaginal bleeding should first see a physician. However, since it does not contain estrogen like some birth control pills, older women, women who smoke, and women with high blood pressure are not restricted from using the system.
Levonorgestrel-releasing implant
High-dose estrogen
Extended cycle combined hormonal contraceptive
Lipoidal estradiol
Male contraceptive
5α-Dihydrolevonorgestrel
Estradiol-containing birth control pill
Cloxestradiol acetate