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What over the counter medications can give a false positive for methamphetamine?

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What over the counter medications can give a false positive for methamphetamine?

Used for sinus and nasal congestion, pseudoephedrine (Sudafed) can be the cause of false positive tests for amphetamine or methamphetamine.

Can ibuprofen cause a false negative drug test?

Ibuprofen (Motrin, Advil) and naproxen (Aleve) are two very common over-the-counter nonsteroidal anti-inflammatory medications (NSAIDs). If you’ve taken either of these, your urine screen may test positive for barbiturates or THC (marijuana). Ibuprofen may also show a false positive for PCP.

Can at home drug tests give false negatives?

Test results may be false negatives. Teens also may try to “cheat” on a urine test. They might dilute their urine samples with tap or toilet water, or drink a lot of water before the test to flush drugs from their systems.

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Can at home drug tests be wrong?

Test results may be false negatives. Within 2 or 3 days, these drugs are almost always undetectable. Teens also may try to “cheat” on a urine test. They might dilute their urine samples with tap or toilet water, or drink a lot of water before the test to flush drugs from their systems.

Will Tylenol Cold and Flu make you fail 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.

Will Benadryl show up on a drug test?

Some popular over-the-counter allergy and sleep meds like Benadryl and Advil PM have diphenhydramine. It can relieve coughs and runny noses. But on drug screens, it can show up as methadone, which helps people quit heroin or other opiates and can be addictive.

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How reliable are OTC drug tests?

No drug test of this type is 100\% accurate. There are several factors that can make the test results negative even though the person is abusing drugs. First, you may have tested for the wrong drugs.

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