Can phenylethylamine cause a false positive drug test?
Any pharmaceutical that has a phenylethylamine structure (See Figure 1) within the compound can result in a false positive. Numerous substances have been shown to result in false positives (See Table 2).
Can phenylephrine cause you to fail a drug test?
The cough suppressant dextromethorphan may cause false-positive PCP1,2,4 and opioid levels due to its metabolite’s similarity to the opioid agonist levorphanol. Furthermore, decongestants phenylephrine and pseudoephedrine have shown false-positive amphetamine levels due to similar structures.
Can phenylephrine cause a false positive for methamphetamine?
A urine sample was obtained after being hospitalized for 36 hours, which tested positive for methamphetamine, with no suspected ingestion of the target substance. Confirmatory laboratory testing indicated that intravenous phenylephrine and its metabolites were the likely cause of the false-positive UDS.
Does phenylethylamine show on a drug test?
In general there is no commercially available immunoassay for detecting psilocin in urine, but if phenylethylamine is also present in the magic mushroom in significant amount, it is excreted in urine and may cause positive test result with amphetamine/methamphetamine immunoassay due to cross-reactivity with the assay …
Why did my drug test came back positive?
A drug screen tests for the presence of certain illegal drugs and commonly misused prescription medications. A false positive means that the test has detected the presence of these substances in your body when you haven’t actually taken them. Drugs, foods, and other substances can cause false positives.
What to do if you get a false positive for methamphetamine?
If you get a false positive for methamphetamine, you could simply ask to retake the test if that is allowed. Additionally, you can ask to take a more accurate and conclusive test that can detect drug compounds in a specific manner such as gas chromatography-mass spectrometry (GC-MS) and high-performance liquid chromatography (HPLC).
What kind of medication can cause a false positive on a drug test?
The most commonly prescribed oral medication for diabetes, taking Metformin may result in a positive test for amphetamine or methamphetamine. Fluoxetine (Prozac) and trazodone. Both are used to treat depression and may result in false positive tests for amphetamine or methamphetamine and LSD.
What can cause a false positive urine test for THC?
Taking PPIs daily can result in a false positive urine test for THC. 14) Quinolone antibiotics Quinolone antibiotics (levofloxacin, ofloxacin) are commonly prescribed for urinary tract infections, pneumonia, and sinus infections among other things.
Can a nasal inhaler be positive for meth?
If the specimen contains more than 20% d-methamphetamine, then the donor is to be considered positive for illicit methamphetamine use. The l-form of methamphetamine is available OTC in the Vicks and other generic nasal inhalers and the d/l isomer test can tell the difference. D-Methamphetamine abuse is widespread.