Originally Posted by Tat2Jr

For weed? Stop smoking the day before... Drink TONS of water, and take TONS of Niacin. He will get red and blotchy from the niacin (that means it's working). It's been so long, but I think I took the normal daily dose of niacin every hour. I passed 100's of piss tests doing that when I was a teen. I was a heavy smoker too.