Anyone have any experience with these? I've read info on it that's both for it or against it so I'm not sure whether or not they actually work. I've got 3 of them so I was going to smoke later today my last time then take one tonight, one tomorrow, and one the next day while drinking a ton of water so I can pass a drug test that I have that's coming up.
Eh, the evidence that they work for passing drug tests is pretty sparse. There are too many other factors to take into account when considering whether or not using niacin is the way to go. If your test is anytime soon, I would be safe and just not smoke.
If your test is within the next 5 days, just don't smoke anymore, start drinking tons of water, and start excercising. You'll pass easy.