Letrozole Zentec Pharmaceutical is currently the most powerful aromatase inhibitor available. In the world of bodybuilding it is used to reduce or eliminate excess estrogen caused by the use of aromatizing steroids. In simplest terms it attaches to the aromatase enzyme and prevents it from converting androgens to estrogen. In slightly more complex terms, estrogens are produced by the conversion of androgens through the activity of the aromatase enzyme, and letrozole actually inhibits the production of estrogens in by competitive, (reversible) binding to the heme of the relevant cytochrome P450 unit.
Femara (letrozole) is a type II (non-steroidal) third generation aromatase inhibitor. Clinically it is used to treat postmenopausal women with either estrogen receptor positive or estrogen receptor unknown breast cancer.
Recommended Dosage: 1 mg daily
Zentec Performance is an official distributor for Zentec Pharmaceutical.