False-negatives and false-positives from immunoassays can lead to adverse consequences for patients and providers. By identifying medications that contribute to false-negatives and false-positives, pharmacists decrease misinterpretations from urine drug screens. How is hydroxychloroquine taked Can i still take ibuprofen with hydroxychloroquine So how can two urine tests in a row come back positive for Methadone when I haven't taken any? Currently I am on Lisinoprilfor high blood pressure, Tramadol, Soma, Ibuprofen, Lortab 7.5 and Elaveljust at bed time to help me sleep. This combination of drugs has never triggered a false positive before. Bentyl® - false positive for LSD, Methadone Benylin - false positive for Opioids Benzedrine® - Amphetamines Benzphetamine - false positives for Amphetamines, Ecstasy, and LSD Biphetamine® - for Amphetamines Black Pearls Tung Sheuh pills - contain benzodiazepines Briantum - may test positive for benzodiazepines False-positive methadone levels have been documented with diphenhydramine 100 to 200 mg 2-4,14 and doxylamine intoxication. 4,15 Additionally, doxylamine intoxication has produced false-positive opiate 14 and PCP 2 levels, and brompheniramine use may cause false-positive amphetamine 4 and LSD 3,9 levels. Consider using second-generation. Pharmacists can provide guidance in selecting appropriate drug therapies that are less likely to cause false readings, thus decreasing the need for additional testing. Unexpected results from urine immunoassays should have a confirmatory gas chromatography–mass spectrometry or a high-performance liquid chromatography test performed. Plaquenil false positive methadone Buyer Beware Pitfalls in Toxicology Laboratory Testing, DRUG SCREENS. Substances that may cause a false positive - A. T. Normal plaquenil doseBulleye chloroquin retinopathyHydroxychloroquine and doxycycline A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including rash, itching/swelling especially of the face/tongue/throat, dizziness, trouble breathing. This is not a complete list of possible side effects. Plaquenil Oral Uses, Side Effects, Interactions.. Urine Drug Screening Minimizing False-Positives and False.. Toxicologic Testing for Opiates Understanding False-Positive.. Hydroxychloroquine - I believe this drug causes false positive drug test of THC? Asked by Boni6258 Updated 6 January 2018 Topics chloroquine, hydroxychloroquine, drug test, medication Why Would A Urine Test Show Positive For Fentanyl When I've Never Taken It? I Do Take Ms Contin. I've been under contract with a Pain Management Doctor for approximately 12-14 years. Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.