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The Biggest Challenge for Male Birth Control
A healthy man puts out around 15 to 200 million sperm per milliliter of semen. To stop pregnancies, the target is to bring that sperm concentration from more than 15 million down to 1 million sperm per Milliliter. The good news is we don't have to go totally John Wick and kill all the sperm. We almost had something that could do this decades ago. There was a drug called Win 18466 being developed by a pharma company called Sterling Winthrop. They were developing it to fight off parasites, amoeba infections. And they were testing this in rats. That is until they noticed something weird. Usually, it's not hard to get rats to have babies.