please beware, about 5 years ago my t levels were naturally in the 900s and i started taking propecia "hair loss pill" and in less than 1 year my levels went from the 900's down to the 100's. i didnt know what happened until it was too late. i stopped taking it immediately but my t levels never came back after a year of struggling, my doc sent me to a urologists and thats when i was prescribed test. i also became infertal after taking propecia and 5 years later, i still am.... BEWARE