A hormone injection for men has been shown to be 96% effective as contraception.Over a year-long trial, the injection was effective in nearly 96 per cent of couples. The side effects caused 20 men hgh online drop out of the trial. Injection man was one case of depression, one intentional paracetamol nijection, and one case of an irregular heart rate — all judged as being possibly related to the injection. The trial was eventually discontinued after an external panel of reviewers concluded that the risks to the study participants outweighed the potential benefits. Nevertheless, more than 75 per cent injection man men in the trial injection man they injectkon satisfied with the injection and would injection man to use it injection man it were available.
A hormone injection for men has been shown to be 96% effective as contraception. - BBC News
Scientists trialling an experimental injected form of male contraception have shown that it's almost completely effective in preventing pregnancies — getting us closer to finally having a male equivalent to female contraceptives like the pill and IUDs. But while the hormone shot was effective for almost 96 percent of men testing it, side effects reported by some participants saw the trial ending earlier than planned, and could mean that the contraception never actually sees the light of day.
Anderson and fellow researchers recruited healthy male participants aged between 18 and 45 to trial the injection, designed to lower sperm counts during the course of treatment. The shot consists of two hormones: The men testing the contraceptive were all in long-term monogamous relationships with female partners, and had healthy sperm counts at the outset of the trial.
Each man received two injections every eight weeks over a period of 56 weeks. Semen samples showed that of the participants reached this level within 24 weeks, and the contraceptive was found to be effective in almost 96 percent of continuing users. But four pregnancies resulted during the experiment, showing the injection is still not as reliable as the female pill — which is up to In the absence of any other male contraceptives tested in clinical trials, though, the researchers are claiming the efficacy achieved so far as a victory.
Of more concern are the side effects that some men reported during the trial, which saw 20 participants ultimately drop out. These symptoms included depression, mood disorders, injection site pain, muscle pain, increased libido, and acne. A suicide commited by one of the participants during the trial was found to not be related to the use of the treatment. But the drug could have been linked to one intentional paracetamol acetaminophen overdose, and one case of depression, in addition to other adverse effects.
In light of these side effects — and despite the fact that three quarters of the men indicated they would be happy to keep taking the drug — some scientists who weren't involved with the trial have shown reservations over the jab. For me, this is the major concern of this study. While there are currently no male contraceptives on the market — with the exception of condoms — there's no shortage of research in the area. One of the most publicised efforts is a drug called Vasalgel , which is currently undergoing clinical trials and — provided testing pans out — could be available to the public as early as And just this week, researchers in the UK announced success with a new peptide-based treatment, which they say can affect sperm's ability to swim — with potential for use in fertility boosters in addition to contraceptives.
In terms of the injection study, the researchers acknowledge there's more work to do, but they're confident we're getting close. Get ScienceAlert stories delivered to your inbox.