Monkey’s try out new male contraceptive

A potential new approach to male contraception has been reported on the BBC news. The method involves injecting a high molecular weight polymer into the vas deferens. In the small study published in Basic and Clinical Andrology the polymer, called Vasalgel, was tested in 16 monkeys.

After being treated, the monkeys were housed with breeding females for up to two years. No pregnancies were reported during the study period and complications were said to be minor. According to the authors the next step would be to see how easily the polymer could be removed and whether fertility could be restored.

Injection of Vasalgel was conducted under general anaesthetic, so it is not clear what advantage this potential method might have over traditional vasectomy. Simple and effective reversal might make it an acceptable alternative.

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