The combined oral contraceptive pill COCP , often referred to as the birth control pill or colloquially as " the pill ", is a type of birth control that is designed to be taken orally by women. It includes a combination of an estrogen usually ethinylestradiol and a progestogen specifically a progestin. When taken correctly, it alters the menstrual cycle to eliminate ovulation and prevent pregnancy. They were first approved for contraceptive use in the United States in , and are a very popular form of birth control. They are currently used by more than million women worldwide and by almost 12 million women in the United States.
Oral Contraceptives: The History of Birth Control Pills
Oral contraceptive , also called birth control pill , any of a class of synthetic steroid hormones that suppress the release of follicle-stimulating hormone FSH and luteinizing hormone LH from the anterior lobe of the pituitary gland in the female body. FSH and LH normally stimulate the release of estrogen from the ovaries, which in turn stimulates ovulation —the release of a mature egg from the female ovary see menstruation. However, when FSH and LH are suppressed, the chances of ovulation and therefore fertilization by a male sperm cell are significantly reduced. When oral contraceptives are used correctly, they are between 92 and 99 percent effective in preventing an unintended pregnancy.
Jump to content. This factsheet looks at the early development of contraceptive methods, the methods currently available and possible future developments. Unless otherwise stated, dates refer to availability in the United Kingdom UK.
Searle Company of Chicago , Illinois. Sanger, who opened the first birth-control clinic in the United States in , hoped to encourage the development of a more practical and effective alternative to contraceptives that were in use at the time. Clinical tests of the pill, which used synthetic progesterone and estrogen to repress ovulation in women, were initiated in But if you see something that doesn't look right, click here to contact us!