What allergy medicine makes you fail a drug test?

Diphenhydramine (Benadryl) is an antihistamine found in allergy medications like Benadryl and sleep aids like Tylenol PM and Advil PM. If you’ve taken diphenhydramine, your drug screen may show a positive result for opiates, methadone, or PCP.

Does Tylenol Cold and Flu show up on a drug test?

Codeine, used in Tylenol and other medications to counter cough or the aches and pains that come with the flu. It is an opiate. When codeine enters the body and is metabolized, it changes to morphine. Therefore, you may end up with a positive drug screen for codeine and/or morphine.

Can allergy medicine cause a false-positive drug test?

Determining what OTC products patients are taking is very important when using UDS testing, as some OTCs may cause false-positive results. Antihistamines, analgesics, cough suppressants, and heartburn medications have been shown to cause false-positives in studies and case reports.

Can cold medicine cause a false-positive drug test?

Cold medications, the antidepressant Wellbutrin, and tricyclic antidepressants can trigger false-positive results on tests for amphetamines, according to the review, and the antidepressant Zoloft and the painkiller Daypro can show up as a benzodiazepine problem.

Can Claritin D cause false positive drug test?

Can taking Claritin-D cause someone to test positive for meth? “No,” said Butch. “The active ingredients of Claritin-D will not cause you to be positive for methamphetamine.”

Will Flonase show up on a drug test?

Accordingly, fluticasone 17-beta-carboxylic acid is detected in urine in individuals recently exposed to inhaled FP therapy. Fluticasone 17-beta-carboxylic acid may be detected in urine as early as 16 to 24 hours following a patient’s first administration of low dose (220 mcg) FP therapy.

Will Theraflu show up in a drug test?

This medication may interfere with certain lab tests (such as urine drug screening tests, urine 5-HIAA), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug.

Will phenylephrine show up on a drug test?

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.

Will Claritin cause positive drug screen?

Do allergy pills show up on drug test?