Teragon Nolvadex is an oral preparation containing 20mg of the substance Tamoxifen. Nolvadex is not a steroid, rather a selective estrogen blocker. While Tamoxifen doesn't prevent the build-up of estrogen in the body, it does prevent it from acting on certain receptors, most notably, those located in the nipples. This has obvious benefits to athletes, because this is the area in which "gyno" occurs during the use of aromatizing steroids such as testosterone. Tamoxifen also offers another great benefit to athletes due to the fact that it can greatly increase the amount of testosterone that the body makes by stimulating LH production. This makes Nolvadex a great choice for PCT (post cycle therapy). It's also important to note that Tamoxifen doesn't reduce estrogen throughout the body, and that those athletes looking to minimize overall water retention and bloat should look towards true estrogen blockers such as Arimidex or Femara. Athletes often use Nolvadex in doses of 20-40mg a day throughout cycle duration where gyno is a concern. Those looking to incorporate Tamoxifen into their PCT program will typically run the substance at similar doses for 4-6 weeks upon the discontinued use of all steroids.