1 doctor weighed in:

I workout 4 times a week, drinking a gallon of water and taking niacin with workout. I used to smoke 2 time a week. How long till weed out of blood?

1 doctor weighed in
Dr. Rick Koch
Internal Medicine - Cardiology

In brief: For chronic users

About 30 days for urinary detection.
..Please don't use marihuana unless medically prescribed.

In brief: For chronic users

About 30 days for urinary detection.
..Please don't use marihuana unless medically prescribed.
Dr. Rick Koch
Dr. Rick Koch
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