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Will tylenol pm cause false positive drug test?

The reason for the positive result is diphenhydramine which can potentially cause a false positive with laboratories that screen by enzyme immunoassay. Diphenhydramine Citrate

Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold.

is found in some sleep aids. Examples are Tylenol PM, Excedrin PM, Unisom and many others.

What can cause a false positive on a drug test? Doxylamine, found in Unisom and other over the counter sleep aids (similar to diphenhydramine), may cause a false positive on a drug test for methadone, opiates, and PCP. Sertraline (Zoloft) is an antidepressant and if you’ve taken it, you may test positive for benzodiazepines and LSD. Tramadol (Ultram) is a non-opioid medication used for pain.

What can cause a false positive for methadone? Causes For A False Positive For Methadone. 1 Advil PM. 2 Doxylamine. 3 Methadose. 4 Physetone. 5 Quetiapine. 6 (more items)

Are there any medications that can cause a false positive for PCP? Venlafaxine is a commonly prescribed serotonin-norepinephrine reuptake inhibitor (SNRI) antidepressant used for anxiety, depression, and menopausal hot flashes. Taking venlafaxine can result in a false positive urine test for PCP.

What kind of medications can you test positive for? Many over the counter remedies contain diphenhydramine, an antihistamine also used as a sleep aid, including Tylenol PM and Advil PM. If you’ve taken these, you could test positive for methadone or PCP. Ibuprofen and naproxen (Advil/Motrin and Aleve).