False Positive in Urine Drug Test
False Positive in Urine Drug Test
False Positive in Urine Drug Test
Dextromethorphan Diphenhydramine
the main ingredient in many OTC Antihistamine that can help treat
cough suppressants. If you’ve taken allergies, itching, and cold symptoms.
dextromethorphan, a urine test may It’s not clear what dose of
show positive for PCP. diphenhydramine would cause a false
positive result.
EXAMPLES OF MEDICATIONS
Pseudoephedrine Quetiapine
Used for sinus and nasal congestion, Quetiapine (Seroquel) is one type of
pseudoephedrine (Sudafed) may atypical antipsychotic. It could cause
cause false positive test results for you to test positive for opioids
amphetamine or methamphetamine. (specifically methadone).
EXAMPLES OF MEDICATIONS
Promethazine Ibuprofen
It can be used to help relieve nausea It has been known to cause false-
and vomiting. It can cause false positive results for barbiturates,
positive results for amphetamine or cannabinoids (THC), or phencyclidine
methamphetamine. (PCP).
EXAMPLES OF MEDICATIONS
Labetalol Phentermine
A medication used to treat high A weight loss medication, can
blood pressure, can cause false- cause false-positive results for
positive results for amphetamines.
amphetamines.
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