Letrozole is a powerful aromatase inhibitor. The drug is appropriately used when using substantial amounts of aromatizing steroids, or when one is prone to gynecomastia and using moderate amounts of such steroids. Letrozole can achieve a high degree of estrogen blockade. It is possible to reduce estrogen too much with Letrozole, and for this reason tests, should be taken after the first week of use to determine if the dosing is correct.
Suggested Dosage and Administration
1.25-2.5 mg daily