Quote Originally Posted by Rusty-Axe
spend all day purging.drink water i mean lots of it.gallons. eat niacian and spend the day sweating in hot bathtub.niacin will make u sweat so will the hot water..you will feel like shit, but u will sweat a lot out..and piss a lot out.drink lots of water.along with the 30 ish days of not smoking u should be ok.
This is nothing more than an old myth, perhaps the oldest drug testing myth in existence. Niacin does nothing to rid the body of THC. The people who claim to have passed U/As after taking niacin had also consumed enough water/fluids to facilitate dilution. The dilution factor is the real hero here - not the niacin. They wouldve passed that same test that same day anyway, just on the waterloading alone and without the niacin to go with it.

Drinking a bunch of water days before the test is of no help. And very little THC is excreted via sweat. The primary pathway to THC excretion is via the urine and bowels.
Read post #2 in this thread for more info: http://boards.cannabis.com/drug-test...ears-help.html