Will pseudoephedrine cause a positive drug test?
There are many well-demonstrated causes of amphetamine false positives on both urine drug screens and the confirmatory GC/MS. 1-4 Common medications that may produce a false-positive result include pseudoephedrine, labetalol, bupropion, trazodone, and chlorpromazine.
Can albuterol cause a positive drug test?
ELISA testing revealed no evidence of albuterol in urine at 24 hours after any single-dose administration. Results indicated that 48 hours or longer should be allowed for albuterol to be cleared from urine after single doses.
How long does it take for pseudoephedrine to get out of your system?
The half-life of pseudoephedrine is between 5 and 8 hours, though the more acidic the urine, the lower the half-life. Pseudoephedrine can be illegally used to manufacture methamphetamine, which has become a national epidemic.
What can cause false positive for Benzo?
A review of secondary sources revealed sertraline to be a well-described cause of false-positive benzodiazepine screens. In 2006, Rapuri et al1 list sertraline and oxaprozin as causing false-positive screening results for benzodiazepines.
What drugs cause false positive for benzodiazepines?
Taking sertraline could lead to a positive result for benzodiazepines or LSD on a drug test. Trazodone is another antidepressant used to treat depression. Taking it may result in a false positive test for LSD, amphetamine, or methamphetamine.
Will albuterol show up in a urine test?
Can inhalers make you test positive for drugs?
Test results may come back positive if you have taken certain antihistamines, nasal inhalers, or cold medicines. You may also get a false positive if you take certain medicines for depression.
How long does phenylephrine stay in urine?
86% of a dose of phenylephrine is recovered in the urine 3 with 16% as the unmetabolized drug, 57% as the inactive meta-hydroxymendelic acid, and 8% as inactive sulfate conjugates. Intravenous phenylephrine has an effective half life of 5 minutes and an elimination half life of 2.5 hours.
Can phenylephrine cause a positive drug test?
Abstract. Phenylephrine, an α(1) -adrenergic agonist, and methamphetamine, a prescription drug and substance of abuse, have similar chemical structures and thus have the potential to cross-react in qualitative screening tools such as a urine drug screening (UDS) performed by immunoassay.