I have prescription for numerous drugs that I take an a regular basis. They are as follows: Lortab, Etodolac, Flexeril, Lexapro, Ibuprofin 800, Naprosyn 500, and some sort of oral steroid. I also use some OTC meds like Rantidine and the day before I got hit for a Random drug test, I had the flu and called out. I was using Nyquil, Thera Flu, and a nasal spray to clear me up. I did test positive for amphetamines and methamphetamines. I do not use Meth and can not for the life of me, figure out how I tested positive for those.
The cold meds you were taking likely caused this false positive. See if they will let you retest or send your specimen to the lab instead of doing the quickie test. Offer hair and blood to show you are earned and honest. Steroids also can do some weird test results also, I think. Take your RX bottles with you with your name and the instructions on them.
Hi Mica. In addition to the following excerpt from an article, the chemicals used in the test kits have a short shelf life too. But the number one reason for false positives is poor quality control in the testing labs. After all, when humans are responsible, mistakes can, and are made everyday.
"Laboratory slip-ups are to blame for many of the mistaken test results. But even perfect labs running perfect tests will also find many false positives.
False positives are caused by:
*Nasal decongestants such as Dristan, Neosynephren, Vicks Nasal Spray, and Sudafed, which cause false positives for amphetamines.
*Poppy seeds like those on a dinner roll, which cause false positives for opiates. Even the highest-quality test currently available, the GCMS test, still confuses poppy seeds with heroin.
*Pain relievers such as Advil, Nuprin, Midol, Trendar, or any medicine containing Ibuprofin cause false positives for marijuana.
*Antibiotics such as amoxicillin or ampicillin cause false positives for cocaine.
The above list is only a beginning. Most substances which people have in their blood have never been tested to see if they cause false positives. Indeed, even some natural body enzymes cause false positives. According to research validated by the Congressional Office of Technology Assessment, melanin, the natural pigment which makes skin dark, can cause false positives for marijuana."
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