TL;DR
For as long as there has been a pill, birth control has mostly been a woman's job; men have had condoms and vasectomy. A pill now in development at Weill Cornell Medicine would let a man take it about 30 minutes before sex, be covered for roughly 6 to 8 hours, and be fully fertile again afterward, its developers say. On Oct. 22 the team won $8.2 million in federal money, about $2 million a year for four years, to run the safety tests that must come before anyone swallows it. If it works in people, men could share contraception the way they share a decision, one occasion at a time, with no daily hormones. That is a big if: it has stopped pregnancy only in animals, and no human trial has a date.
Below the line, for paid subscribers: The full story: where it stands, how we got here and what's dated next; our Odds board on 5 milestones, starting with "The Weill Cornell on-demand pill is given to a man for the first time in a trial by 2028"; and every source.