A spoon of this the night before and one in the morning has helped me and a few other walking resinballs I know pass urinalysis for over 10 years now.
I don't know if this place is still good to order from but the cheapest I have seen it online is at:
http://www.vitaglo.com/f1860618.html
I buy mine from a local health store for about $22 a bottle. The bottle lasts forever if you dont get stupid like some, and drink half of it at a time. Drinking it a lot may make you a bit too regular. I also take a spoon of it when I am feeling flu-ish.
What Sonne's #7 is, is volcanic ash in a water base. It adsorbs the charged particles out of your bloodstream and you pass them through yer ace instead of your urine.