Clomid is a powerfully effective anti-estrogen officially classified as a Selective Estrogen Receptor Modulator (SERM). It is also one of the most commonly used SERM’s by anabolic steroid users. It is used as a Post Cycle Therapy (PCT) medication in order to stimulate suppressed testosterone production due to anabolic steroid use. PCT use of Clomid is the most common purpose and most beneficial point of use for the anabolic steroid user.