Letrozole is one of the most potent and effective anti-estrogen available today, and it may even eliminate gynecomastia, thus making surgery unnecessary.
It First gained U.S. FDA approval in 1997 and would hit the market under the brand name Femara through Novartis.
Currently, it is one of the most commonly used anti-estrogens to combat possible estrogen related side effects due to steroid abuse.
A great many bodybuilders have claimed that it eliminated gynecomastia tissue quickly.
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