It depends on the contents of those vitamin pills. B12 is a good mask for THC, in large quantities but other vitamins contained in multivitamins cause your body to metabolize the THC faster, increasing the concentration in your piss.
mrmarijuanaman Reviewed by mrmarijuanaman on . Took my Drug Test today (14 Days Clean) Pictures inside Today was my 14th Day without Smoking, Before that i use to smoke about 2 or 3 times a week at most ... and it would be two blunts shared with two other people so 3 of use in total smoking 2 blunts about 3 times a week. I ran about three times .. each time was about a mile, i also drank a bottle of orange juice the one that has no sugar..ect and 48 hours before today (before test) i started eating pizza and burgerking, mcdonalds... and stayed in bed most of the day except for yesterday i had Rating: 5