Nitric Oxide(free radical gas_

Hi i've been reading up on nitric oxide for a project and I came across the use of nitric oxide in form of tablets for bodybuilders and I dug deeper and found that there where many other up sides so nitric oxide but I could not find anything on the effects of nitric oxide on teens and I came up with nothing.I found this very odd so I ask around and every one say well just ask a doctor so i'm asking all you great people to help me out please.