Chemist Behind the Combined Oral Contraceptive Dies at 102
Chemist Behind the Combined Oral Contraceptive Dies at 102
George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

Chemist Behind the Combined Oral Contraceptive Dies at 102
Chemist Behind the Combined Oral Contraceptive Dies at 102

George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

George Rosenkranz was part of a team in Mexico City that first synthesized norethindrone in 1951.

contraception
Gene Variant Linked to Lower Levels of Hormonal Birth Control
Gene Variant Linked to Lower Levels of Hormonal Birth Control
Shawna Williams | Mar 14, 2019
Such differences may help explain accidental pregnancies among women on the pill, researchers say.
Image of the Day: Broken Needles
Image of the Day: Broken Needles
Carolyn Wilke | Jan 17, 2019
A long-acting contraceptive patch with microscopic needles releases a drug slowly over time.
Hormonal Male Contraceptive to Enter Clinical Trial
Hormonal Male Contraceptive to Enter Clinical Trial
Jef Akst | Dec 21, 2017
The gel, which men rub on their upper bodies daily, delivers synthetic progestin to block the testes from producing normal levels of sperm.
Next Generation: Sperm-Catching Beads
Next Generation: Sperm-Catching Beads
Anna Azvolinsky | Apr 27, 2016
Sperm-binding, peptide–coated beads work as an implantable contraception device in mice and as a means of selecting human sperm for assisted reproduction techniques, researchers show. 
Influential Chemist Dies
Influential Chemist Dies
Tracy Vence | Feb 2, 2015
Carl Djerassi, who synthesized a hormone that was key to the creation of the birth control pill, has passed away at age 91.
Sex and Drugs
Sex and Drugs
Kerry Grens | Jul 1, 2014
Did 20th-century pharmaceutical and technological advances shape modern sexual behaviors?
Sperm on Lockdown
Sperm on Lockdown
Abby Olena | Dec 4, 2013
In a proof-of-principle study, genetic deletion of two genes renders male mice infertile by preventing sperm transport through the vas deferens.
Birth Control Pills and Prostate Cancer
Bob Grant | Nov 16, 2011
A new study suggests a possible link between the use of oral contraceptives and rising prostate cancer rates.