it depends on how heavy a smoker you are...
if you smoke every day, you should take at least 3 a day for a week..AND stop smoking for that week.
if however you don't smoke often, just once or twice near the test date,
one or two for a couple days should do the trick.
there also have been times where my friends smoke the day before the test and take half a bottle of niacin and, while they feel like they're dying of sunburn, it has worked.
BUT that's up to you.
Also, niacin's main use is to strip THC from fat cells, so body type/weight is also a factor. If you are on the heavier side, more pills and more time alotted is wise.
No, niacin will not clean drugs out of your system. At all.
Niacin does not clean drugs out of your system.
No, niacin will not clean drugs out of your system.
No, niacin is absolutely useless for cleaning drugs -- any drugs -- out of your system.
niacin pills
Niacin does not "clean" the system - there are no magic potions that do that. Niacin simply causes you to feel a flushed sensation as you capillaries open up some. It is not "cleaning" anything and too much niacin can actually harm your liver.
Niacin will not clean any drugs out of your system. This is an old wives' tale (or, rather, an old druggie's tale).
How many niacin pills do you got to take to clean weed out of your system? 7-10 taking one a day and drinking lots of fluids.
yes
Not of opiates, sorry.
No. Niacin does not clean drugs -- any drug -- out of your system. It is entirely useless for that purpose. See the Related Question below for more information.
It could but you should drink 3 gallons of cranberry juice with it so you can speed up the process!