Men taking 2.5 mg letrozole per day will notice that their testosterone levels duplicate and the concentration of estradiol in the blood decreases by 45 percent . Urologists at the University of Mersin, in Turkey wrote about it in " Fertility & Sterility ."
Another study in overweight men, the volunteers testosterone level quadrupled when taken weekly tablet containing 2.5 mg of letrozole. In another Canadian study, a dose of 2.5 mg per day doubled the volunteers testosterone levels...
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