Okay so I have seen some people, and even heard from a friend of a friend who tried himself, that if you drink a bunch of water mixed with gelotin that you can pass a drug test, even if you smoked that day. IS this true? If so how exactly does it work? If anyone has tried it themselves feel free to tell me how you did it and how it worked out. Also, do hospitals do drug tests during checkups for minors? If not, do they if a parent asks? If so what are some other ways to pass it?