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Non-hormonal male contraceptive implant lasts at least two years in trials | Product known as Adam implanted in sperm ducts could offer a reversible alternative to condoms and vasectomies


Product known as Adam implanted in sperm ducts could offer a reversible alternative to condoms and vasectomies

The company behind the product, Contraline, says the approach offers a reversible alternative to condoms and vasectomies, with the hydrogel designed to break down in the body after a set period of time, restoring fertility. Adam is not the first male contraceptive in development that acts by blocking the sperm ducts (vas deferens), although Eisenfrats said some other implants had used materials that did not break down in the body. However, Eisenfrats said the hydrogel had a predictable lifespan and had been shown to break down over time in animal trials, with work using lower doses in men revealing a shorter period of efficacy.

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