Letrozole Femara Profile:
Letrozole was first developed in an effort to combat breast cancer in post-menopausal women. In fact, it would prove to be virtually identical to the already popular AI in Arimidex (Anastrozole). While intended for breast cancer treatment, like many AI’s, it has found a welcomed home among anabolic steroid users. Letrozole is one of the most commonly used anti-estrogens among steroid users during steroid use to combat possible estrogenic related side effects. It is so effective as an anti-estrogen in this regard many anabolic steroids have effectively reversed gynecomastia symptoms with Letrozole.
Letrozole Femara Effects:
Letrozole as an anti-estrogen is extremely beneficial to breast cancer patients. Many forms of breast cancer actively feed off the estrogen hormone. By inhibiting the production of estrogen, which in turn lowers the amount of circulating estrogen in the body, this has the ability to starve the cancer.
Letrozole vs. Aromasin-Arimidex:
Letrozole is not a suicide aromatase inhibitor, meaning it will not permanently disable the aromatase enzyme, so it is not the same as aromasin. The other difference is letro is far more powerful at crushing estrogen levels than either aromasin or arimidex. I would use it in emergency situations over the others, but I wouldn’t abuse it.