The RISUG injection lasts for ten years, is completely reversible and has no side effects.
A new birth control method for men has been developed by scientists in India that has proven to be 100% effective. The injection, called RISUG (Reversible Inhibition of Sperm Under Guidance) works for 10 years with no side effects and is reversible with another injection. It works by injecting a non-toxic, positively charged polymer into the man’s body which makes them unable to fertilize an egg.
Phase III trials are starting in India, the last step before it is available for the public to use, and a private foundation called Parsemus is working to get it approved in the United States.