I only smoke marijuana and last time i did was a week and a half ago. he said i will be tested in 2-7 days. these are some medicines i ve been suggested taking cranberry concentrate pills with vitamin b complex. also niacin but ive heard it can show up on some tests and some ppl ive asked dont trust it. Another is omni but i heard u have to take like 3-4 hours before ur test or it doesnt work. also suggested to me was ready-clean. anyone who has been in a situation like this plz answer n im gonna stop smokin after this n obviously drink lots of water. and its a piss in a cup test any help would be greatly appreciated. sorry i know this has nothing to do with dating but the men's health section is dead and i know a lot ppl are in this section