the only way to speed it up is to drink a ton of water. drink at least 2 liters a day, or else youre gonna be at risk to fail the drug test.
people say stuff all the time like drinking vinegar and cranberry juice and stuff like that, but the only thing ive heard that actually works is 5 hour energy. theyre supposed to help for some reason, and your supposed to drink 2 a day, NOT at the same time.