Male Birth Control Breakthrough: Scientists Find Way To Turn Sperm Production Off and Back On

Cornell researchers found that JQ1 can temporarily halt sperm production in mice by disrupting meiosis in the testes.

In the six-year study, fertility returned to normal after the drug was stopped, showing the effect was reversible.

The work points to a potential long-acting, nonhormonal male contraceptive option beyond condoms and vasectomy.

The findings were reported in the Proceedings of the National Academy of Sciences.