Researchers overseeing the clinical trial for the first FDA-approved oral contraceptive claimed the drug gave the Puerto Rican participants power over their family planning. Critics claimed the women were exploited.
Engineered antibodies trap and immobilize human sperm in the reproductive tract of female sheep, paving the way for possible use as a nonhormonal contraceptive in people.
A device that releases synthetic hormones slowly over time could one day provide a more practical alternative to daily birth control pills, say scientists.