Levonorgestrel combined pill

Millions of women throughout the world take oral contraceptives (the pill). The most common type of oral contraceptive is a combination of a synthetic estrogen such as mestranol, 85, or ethinylestradiol, 86, and a progestin such as levonorgestrel, 87, or norethynodrel, 88. The contraceptives are sold under different trade names such as Levlen, Brevicon, Modicon, Necon, Ovcon, and others. 

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