researchers behind the invention hope to begin human trials later this year, although no date is confirmed. Other attempts at developing a male contraceptive pill have been unsuccessful so far.
One medicine, Dimethandrolone undecanoate (DMAU), caused significant side effects in participants, including acne, headaches, tiredness, weight gain, and reduced sex drive.
These side effects are quite typical with hormonal contraceptive pills commonly used by women, but seemingly proved too much for males.
One alternative method involves an injection into the testicles. While this can be effective for up to 10 years, the idea of a sharp needle down there could be intimidating to many.
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