Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 46. Chapters: Emergency contraception, Combined oral contraceptive pill, Depo-Provera, IUD with progestogen, NuvaRing, Contraceptive patch, Extended cycle combined hormonal contraceptive, Emergency contraceptive availability by country, Norplant, Ormeloxifene, Oral contraceptive formulations, Implanon, Progestogen-only pill, Ulipristal acetate, Ethinylestradiol, Levonorgestrel, Diosgenin, Yuzpe regimen, Desogestrel, Trestolone, The Pill, Breakthrough bleeding, Ludwig Haberlandt, Nelson Pill Hearings, Combined injectable contraceptive, Mestranol, Vaginal ring, Enovid, Norethisterone acetate, Norethynodrel, Junel, Estrostep, Progestogen only contraception, Synphasic. Excerpt: The combined oral contraceptive pill (COCP), often referred to as the birth-control pill or colloquially as "the Pill", is a birth control method that includes a combination of an estrogen (oestrogen) and a progestin (progestogen). When taken by mouth every day, these pills inhibit female fertility. They were first approved for contraceptive use in the United States in 1960, and are a very popular form of birth control. They are currently used by more than 100 million women worldwide and by almost 12 million women in the United States. Usage varies widely by country, age, education, and marital status: one third of women aged 16-49 in Great Britain currently use either the combined pill or a progestogen-only "minipill", compared to only 1% of women in Japan. By the 1930s, scientists had isolated and determined the structure of the steroid hormones and found that high doses of androgens, estrogens or progesterone inhibited ovulation, but obtaining them from European pharmaceutical companies produced from animal extracts was extraordinarily expensive. In 1939, Russell Marker, a professor of organic chemistry at Pennsylvania State University, developed a method o...
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