I had a urine drug test that showed positive for cocine while all I did was smoke some weed with a girlfriend. I read on line tht quinie can cause a drug test to falsely go postiive. Besides having a preacription for quindine sulfate 200mg, I called the hospital and asked if they test for related metabolites such s the inactive bezelene or the inactive one ecolene or something like that. They told me they do not test for either and after a bit of research unless cocaine leaves thru the liver quickly unless one is a has a regular habit, also if drinking when doing this stuff it can stick around 1/2 life style 5 x's longer. I am perplexed as they also did not list my legally prescribed analgesics being 90 oxycodone 30mg, 120 valium 10mg, and 120 methadone 10mg each month due to a bad accident fracturing numerous vertebrae, I also drink selzer tonic water. Do you think the internet references to cause false positive. Also, it was weeks since smoking some weed with a girlfriend where not my pipe nor my weed and am considering it was laced with coke. I'm inquiring because my pain management doctor is pissed and I need to get to the bottom of this in protecting him and myself. As he implanted a spinal stimulator which removed loads of pain after 20 years. Unfortunately some individual texting away ran into the rear of my car 6 months later on a Chicago interstate and now I have a messed up cervical vertebrae and issues between my shoulder blades and extreme tension in my thigh muscle top and sides mainly the right leg on its right side that begins with increasing tension and if not shut down turns into a nasty burning sensation, in addition pcs from bending my steering wheel at 12 oclock bad enough it had to be replaced and my forehead and scalp went numb for weeks along with bad headaches, vision ok one day not ok the next and alot of other issues from the now post concussion syndrome. So is quinene possible to cause a drug test interference or is the testing lab at the hospital doing a half assed job not testing for metabolites and also listing that my prescribed drugs upon verified as legal are not listed as present which makes it seem I'm not taking them as both issues has caused issues that need clarity. Thank you