New Male Contraceptive Gel Enters Clinical Trials

The first clinical trial is underway to test a new male contraceptive that could be a game changer for preventing pregnancy. From a report: '(It's) a combination of two horomones: Progestin, which is the typical horomone that is found in female contraceptive pills, which they put in there to suppress sperm production, to trick the body, and testosterone, which is the male sex horomone so that there's normal circulating levels of testosterone that men don't lose their libido or sexual function or have any changes in mood,' said CBS News medical contributor Dr. Tara Narula.

The National Institutes of Health is enrolling about 420 couples to use an experimental gel that has been in development for more than 10 years. If proven effective, it would be the first hormonal birth control for men. The gel is applied to the back and shoulders. Researchers found that testosterone, once absorbed through the skin, stays in the system longer than testosterone taken in pill form does. Male volunteers will use the gel every day for four to 12 weeks.

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