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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.

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13y ago

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