Home drug tests make be someone accurate but what I was trying to get at is that there easy to pass compared to a lab test and cranberry may not clean you out completley but it helps bring color into your urine and will make you shit a lot and clean you out a bit. I've done this before and have passed many drug tests. I usually now just quit about a week before exercise a little more but drink plenty of fluids usually green tea and water and always pass. I am somewhat skinny so I can I can burn shit off quicker.