With condoms and vasectomies the only male contraceptive options available, here's what you need to know about birth control pills for men that scientists are working on.
A team of scientists has made headlines after stating that an in-development male birth control compound has been 99 percent effective in animal tests.
The male contraceptive, which can be taken orally, targets a protein in the body called the retinoic acid receptor alpha, or RAR-α, which plays a part in cell growth and sperm formation. Researchers examined this protein and designed chemical compounds that would effectively shut it off in cells. They found that one compound in particular, called YCT529, was effective at doing so.
When given to male mice for four weeks, it reduced sperm counts and was 99 percent effective in preventing pregnancy without any observable side effects, according to a press release from the American Chemical Society . The mice were able to father babies again within four to six weeks after they stopped taking the chemical.
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