I would try some herbal tea stuff (found t GNC) that uses to de-tox your body. I tried, and I am guessing it worked since I got the job. I was around heavy weed smoking all day a week before at a party once, did not smoke myself, but definately got high from the second hand smoke... Had me pissed and shitting since I was getting tested later that week.
Funny story related to that...
My girl tells me I am ok,....but I wanted to take precaution anyway. We go to GNC, get this herbal tea detox stuff, and I make it. It looked like brown dirty water, and had that sweet, yet, nausiating(sp?) smell of berries to it. Yet, I started drinking it 3 days before the test, adding creatine to adjust my levels accordingly. B-12 vitamins for piss color, ect... Tons of water.... Now...at this point I have been drinking about 2.5 gllons of the shit for like 3 days straight, and I can feel my insides churning.... After day 2 it was hard to hold anything in/down. (from the behind)I held up some... The day comes,....I get there early....I feel like I have to shit all of a sudden...."Oh shit:" I think...This shit gave me sudden diarreah/cramps! I started to sweat immediately.... I felt like I ws going to die. There was a friggin' line to the bathroom a mile, and I was feeling like I had no intentions of waiting that long..... I walked/ran (laughing) briskly out , holding my composure as best I could, run stepping and got to my car,..drove aalllllll the way back home clenching and sweating holding the wheel in pain,...and then ran inside and shit my brains out. Man, that was nuts.... I took another shower, and went bacck and had the test done. I turned out fine.