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Viagra is a lodestar for victims of erectile dysfunction. But there is a better treatment now. Sound waves can be used as alternatives, reports the Daily Mail.

The study was published in the Scandinavian Journal of Urology. It outlines the extra-corporeal shock wave therapy, or ESWT, which sends some low intensity waves of sound. It works as it stokes the development of blood vessels that increase blood flow, helping to achieve erection.

In an experiment, 12 men who suffered erectile dysfunction were subjected to different treatments. While half the men got the sound treatment the other half were given placebos.

Just 9 percent of the men who got placebos could have penetrative sex by the end, but in the other group, about 57 percent of those who got the ESWT treatment could achieve an erection for penetrative sex.

Even though sound treatment sounds like a safe and secure alternative to the drugs that are usually prescribed, most of the protocols need to be standardized before the treatment can start to go through the routes.