Upon testing positive for a prescription drug, you will be required to provide proof of prescription in your own name. Once confirmed, your positive result will be considered false and will be reported as a negative result. Plaquenil poisoning Chloroquine solubility Will plaquenil show as thc on a drug test. Premium Questions. Will Marijuana show up in a urine drug test? MD. Does taking Plaquenil cause false positive test result for THC? MD. I take tlaquenil for lupas,& my work sent me for a drug test, & I tested positive for THC. It was only a small amount, but even that s enough to get me fired. Chlorpromazine Thorazine - may test false positive for PCP l-phencyclohexylpiperidine, Phencyclidine Chlorpromazine - false positive for phenylketonuria, amylase, uroporphyrins, urobilinogen. May also cause false positive pregnancy test. Drug screen positive is reported only by a few people who take Hydroxychloroquine Sulfate. We study 11,813 people who have side effects while taking Hydroxychloroquine sulfate from Food and Drug Administration FDA. Among them, 2 have Drug screen positive. Find out below who they are, when they have Drug screen positive and more. Administered Drugs: This includes drugs administered by a medical professional during an office visit or surgery. If proof of prescription is not provided, it is assumed that the drug was taken illegally and a true positive result will be reported. Hydroxychloroquine false positive drug test Does plaquenil hydroxychloroquine cause false positives on., DRUG SCREENS. Substances that may cause a false positive Plaquenil cost for genericEye test for plaquenilPlaquenil during surgeryCan i take mucinex d with plaquenil I just saw a brief interview on Fox News where hydroxychloroquine and chloroquine were a possible treatment for COVID19. Can you confirm this information? Answer this question. Responses. Hydroxychloroquine - I believe this drug causes false positive drug test of THC? Is hydroxychloroquine being tested for a possible.. Will you have Drug screen positive with Hydroxychloroquine.. What Causes False Positives in Marijuana Drug Testing.. The American Council for Drug Education reports marijuana, also known as THC for its active ingredient of delta-9-tetrahydrocannabinol, as the most commonly used illegal drug. This allows for false-positive test results triggered by the metabolites of certain prescription and nonprescription medications, which occurs in approximately one to 2.5. EVIDENCE-BASED THERAPY False-positive reports on urine drug screens by immunoassay are rare strength of recommendation SOR C, small controlled-exposure studies, small case series. Nonsteroidal anti-inflammatory drugs, fluoroquinolones, and Vicks Inhaler are most frequently implicated TABLE. Q Can you explain the reason for a false-positive urine drug screen for marijuana? A In 2013, an estimated 19.8 million Americans aged 12 years or older were current past month users of marijuana and 8.1 million were daily users. 1 An analysis of 7.6 million urine drug screens performed in the U. S. workforce, indicated the positivity rate for marijuana was 1.7%. 2 A positive urine drug.