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Male birth control ‘shot’ study yields promising results

Using a hormone injection to reduce sperm count proved to be a safe form of contraception with almost 96% effectiveness, BBC reports. Men in the study and their partners were asked not to use any other form of contraception and instead got the shot every 8 weeks. Acne and mood change were reported as side effects, enough to cause some to drop out of the study early on, according to research published in The Journal of Clinical Endocrinology & Metabolism. Out of 270 participants, only four pregnancies were reported and only eight men did not regain their original sperm count in the year following the injections.

 

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