Pharmaceutical Name: clomiphene citrate Chemical structure: 2- (4- (2 – chloro – 1,2 – diphenylethenyl)phenoxy) – N, N – diethyl – ethanamine Effective dose: 100-150 mg / day Clomid is an auxiliary drug used to restore the natural cycle of testosterone production. In its action it closely resembles another ancillary drug Nolvadex, although it is fair to say that to achieve the same results, Nolvadex (Tamoxifen Citrate) is a more potent substance. Clomiphene citrate is generally used as a post-cycle therapy in bodybuilding, but it is very important to understand the way this drug works before using it. Clomid is competing with estrogen for estrogen receptors, thus blocking its effects, but also making any presence of estrogen 'invisible' to the body. This is especially important after the cycle. Since the natural production of testosterone is obviously inhibited, the body compensates for the steroid deficiency by producing more estrogen. If their action is blocked, androgens (which stands for testosterone) are produced again. So you can see that Clomid can be used on cycle to block estrogenic effects, as well as post cycle to restart natural testosterone production.