yo Soulcore,
the old drink, drink, drink before a UA; I know all about that one bro.

And Buck268, you probably already know this but if you are going to use niacin to help pass a drug test make sure you're taking nicotinic acid and NOT nicinamide (both forms of niacin) but nicotinic acid does what you want it to, and nicinamide is manufactured specificallyto not do what you want it to. (which is to open the capillaries and have more blood flow thru them and rid your body of toxins).