how many niacin pills will I have to take if I've smoked a quad and I have a urine screen in 2 days?
no, but if you happen to eat poppy seeds probably 2 days before a urine drug test it will happen to show up as a morphine metobolite in the urine.How to pass a drug test in 24 hours if your skinny?
Niacin in large doses can be extremely bad on your liver & causes , shakes, flushing of the skin, & hives .
Try these methods instead as they are experts on such things & give very detailed answers on how to clean out your system.
http://www.erowid.org/psychoactives/testing/testing_faq.shtmlWhen you drink vinegar does it help you pass drug tests?