i havent smoked for two months and than i took a couple of pulls of some dro and than like a couple days later like 2 pulls of some sour that was like 1 month and a half ago... since than i have been taking b12 liquid in the mornings and drink a boatload of water i have a drug test at a hospital soon i got this thc test at walgreens and said it was 99.9% accurate soo tell me what you guys think?