Letrozole (Femara) is an oral non-steroidal aromatase inhibitor. The anti estrogen action of Letrozole is preferred by athletes and bodybuilders for use during a steroid cycle to reduce bloating due to excess water retention and prevent the formation of gynecomastia related breast tissue that is a side effect of some anabolic steroids. When used with growth hormone, Letrozole has been shown to be thereputic. 30 x 2.5mg tablets