"Clomid, although it is classified as an anti-Estrogen, is actually utilized for the treatment of female infertility resulting from ovulation failure (anovulatory infertility). Although Clomid is a very close relative to Nolvadex with both belonging to the SERM category of drugs, Clomid in reality operates at a much poorer efficiency compared to Nolvadex in regards to its Estrogen antagonistic activity in breast tissue. This is to say that it is a weaker Estrogen blocker in breast tissue, where Nolvadex is much better suited for this task. Instead, Clomid’s prime application in medicine is that of a non-steroidal ovulatory stimulant for women. Because Clomid is a SERM, like Nolvadex, it exhibits mixed Estrogen agonist and antagonist effects in various tissues of the body. Like Nolvadex, Clomid acts as an Estrogen antagonist in the hypothalamus, pituitary gland, ovaries, endometrium, vagina, and cervix. This is to say that in these tissues and areas of the body, Clomid serves to mitigate (inhibit or block) the action of Estrogen.
In males as well as females, its Estrogen antagonistic effect on the hypothalamus will trigger a release of LH (Luteinizing Hormone) and FSH (Follicle Stimulating Hormone). These two hormones in men are the signal hormones that signal the testes to begin or increase its production of Testosterone, and this total process is known as the HPTA (Hypothalamic Pituitary Testicular Axis). In females, this same action occurs, except LH and FSH will trigger the release of eggs from from the ovaries"
You take the SERM for the sperm.