![]() When mice were given the drug orally for just four weeks, they had such a steep drop in sperm count that they became sterile. The drug was 99 percent effective at preventing pregnancy in mice and has no apparent side effects, according to the research presented this week at the annual meeting of the American Chemical Society. ![]() The new pill created by a team at the University of Minnesota blocks proteins from binding to vitamin A, which is known to be crucial to fertility and virility in mammals, per Gizmodo’s Ed Cara. “But men’s birth control options-and, therefore, responsibilities-could soon be expanding." “Women have many choices for birth control, ranging from pills to patches to intrauterine devices, and partly as a result, they bear most of the burden of preventing pregnancy,” the researchers behind the work say in a press release. According to the researchers behind the contraceptive, human trials could start by the end of the year. Now, scientists are working to create a non-hormonal birth control pill for men, which has proven successful in lab trials on rodents. Most contraceptives are designed for people with uteruses, leaving few pregnancy prevention options for those with testes.
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