Letrozole 25

Letrozole is an antitumor agent, a non-steroidal selective inhibitor of the aromatase enzyme. Widely used in medicine as a part of post-menopausal therapy in women and breast cancer treatment. Among athletes gained recognition for strong anti-estrogenic properties and raised muscle definition. Like Anastroloze(Arimidex), its effect is up to 5 times stronger, eliminating adverse reactions from anabolic steroid use. Letrozole can suppress estrogen levels in the body, almost wholly shielding from raised estradiol levels.