6. Ibuprofen and Naproxen
Both Ibuprofen and Naproxen are NSAID’s; which are nonsteroidal anti-inflammatory drugs and typically used as pain and fever reducer and, in larger doses, decrease inflammation. We’ve all experienced a headache or something of the like and popped a few Advil or Motrin in hopes of relieving some pain. It turns out, even a small dose of these NSAID’s can trigger a false positive if taken sooner than the day before your drug test. Not only can they cause a false positive for PCP, but they are known to cause false positives for other harder drugs, as well, and in turn, making you appear like you need the help of a rehab clinic. Now, let’s what’s next on the list of drugs that contain Phencyclidine (PCP) and may cause false positive on a drug test.