History
In 1921, Ludwig Haberlandt demonstrated a temporary hormonal contraception in a female rabbit by transplanting ovaries from a second, pregnant, animal. By the 1930s, scientists had isolated and determined the structure of the steroid hormones and found that high doses of androgens, oestrogens or progesterone inhibited ovulation. A number of economic, technological, and social obstacles had to be overcome before the development of the first hormonal contraceptive, the combined oral contraceptive pill (COCP). In 1957 Enovid, the first COCP, was approved in the United States for the treatment of menstrual disorders. In 1960, the U.S. Food and Drug Administration approved an application that allowed Enovid to be marketed as a contraceptive.
The first progestogen-only contraceptive was introduced in 1969: Depo-Provera, a high-dose progestin injection. Over the next decade and a half, other types of progestogen-only contraceptive were developed: a low-dose progestogen only pill (1973); Progestasert, the first hormonal intrauterine device (1976); and Norplant, the first contraceptive implant (1983).
Combined contraceptives have also been made available in a variety of forms. In the 1960s a few combined injectable contraceptives were introduced, notably Injectable Number 1 in China and Deladroxate in Latin America. A third combined injection, Cyclo-Provera, was reformulated in the 1980s by lowering the dose and renamed Cyclofem (also called Lunelle). Cyclofem and Mesigyna, another formulation developed in the 1980s, were approved by the World Health Organization in 1993. NuvaRing, a contraceptive vaginal ring, was first marketed in 2002. 2002 also saw the launch of Ortho Evra, the first contraceptive patch.
In 1991, ormeloxifene was introduced as a contraceptive in India. While it acts on the hormonal system, this selective estrogen receptor modulator is not a hormone.
Read more about this topic: Hormonal Contraception
Famous quotes containing the word history:
“History has neither the venerableness of antiquity, nor the freshness of the modern. It does as if it would go to the beginning of things, which natural history might with reason assume to do; but consider the Universal History, and then tell us,—when did burdock and plantain sprout first?”
—Henry David Thoreau (1817–1862)
“The one duty we owe to history is to rewrite it.”
—Oscar Wilde (1854–1900)
“The history of this country was made largely by people who wanted to be left alone. Those who could not thrive when left to themselves never felt at ease in America.”
—Eric Hoffer (1902–1983)