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if its in your system theirs no false positive.

Actually several drugs can cause false positives in different categories on a standard drug test...such as any ephedrine containing product can show up as a positive for meth, so if you have been using weight loss/energy pills containing ephedrine or perhaps an Asthma drug containing ephedrine you may show positive for meth on your drug test. Basically, just be up front and tell the tester all of the OTC and prescription drugs you are taking and they will do further testing if necessary to rule out any street drug/illicit use.

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14y ago
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12y ago

ive gotten false positives for opiates when i took ecstasy tabs before. but honestly they probably had heroin in them

The only drugs I know that provide a positive for opiates are opiates. Poppy seeds will give a false positive for opiates as they come from poppies which are the source of natural opiates - opium, heroin, pain killers oxycontin/oxycodone, percocet, vicodin, codeine ...

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Q: What drugs will cause false positives on a drug screen?
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Yes benztropine causes false positives


What can you do to pass a drug test for cps?

Don't take drugs. Also, one might try avoiding substances which can cause false positives on tests.


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Can too many energy drinks cause a false positive for pcp?

To the best of my knowledge, energy drinks cannot cause false positives for PCP.


What kind of drugs can cause a false positive for ecstasy?

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Your test for cocanine on a drug test and dose not use drugs?

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What medications cause a false positive on a drug screen fo marijuana?

what medications cause a false positive on a drug screen for marijuana?


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Can ambient cause false positives?

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What would cause a drug test to show positive for amphenedime?

A few things may have caused this. The first being prescription drugs used to treat ADD or ADHD like Adderall or ritalin. The second thing that may have cause a false positive could be any kind of OTC or prescription drug containing epinephrine or sudephederine. Theres a few other drugs that can cause false positives but I cant remember.


Can phenylephrine HCL cause a false positive in any drug test?

YES! Search "phenylephrine and false positives"....you will get many websites listing many over the counter medications that can cause a positive drug screen. Phenylephrine, Dextromethorphan, & Guaifenesin...active ingredients in many cold remedies...will show positive for amphetamines