I personally had to drug test and I admitted that I was dirty at first for having THC in my body. So before I had to test again in one week I took cranberry pills found at drugstores, drank cranberry juice , drank green tea, and also took antibiotics for a UTI, even though I didn't have one. So when it came time to drug test again I was clean but I did all of these things to an extreme. Good LUCK!!!