Actually, some of the people here (Tucson is a heavy hippie town) use a capful of bleach to pass drug tests. Apparently it clears out basic drugs, but not things like heroin or LSD which remain in your hair or spine, respectively.
No, it just has a tendency to cause esophageal hemorrhaging and bleeding ulcers. As a military member, trust me on this: the only thing that works on piss tests is time, hydration and antioxidants, (pomegranate juice works great) or something that will mask it, like Golden-seal. There actually is no "instant detox" that's guaranteed. If you want a job that requires piss tests... DON'T SMOKE...Duh! As long as you're responsible and careful about smoking, you never get caught...just look at me...LOL. Other than pot, most things are out of your system in approximately three days, depending on your metabolism, mushrooms don't show up at all, unless as "food poisoning"... same with peyote. True, acid can be tested for in spinal tap (sometimes follicle testing...) but since it's both dangerous and expensive, even the government won't pay for it, so your chances on getting that test in the civilian world is unlikely. Just my two cents worth.