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THC - Substances or Conditions which can cause false positives

Dronabinol (Marinol)

ibuprofen; (Advil, Nuprin, Motrin, Excedrin IB etc)

Ketoprofen (Orudis KT)

Kidney infection (Kidney disease, Diabetes) Liver Disease

Naproxen (Aleve)

Promethazine (Phenergan, Promethegan)

Riboflavin (B2, Hempseed Oil)

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15y ago
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12y ago

i dont know but i have weekley mouth swab drug tests and since i stoped taking diazipam 6 weeks ago i am still getting positive results. can anybody give me a clue to what is happening. iam taking methadone and anadin extra capsules and multi vitimin centrum silver complete from a to zinc. if any one has answers i would much appreciate it as you can imagine this is driving me crazy as i know i have not taken it but my drug worker wont accept there is a possibility. thank you.

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14y ago

Generally they test for :

· Cocaine -- Includes Cocaine, Crack and Benzoylecognine

· Cannabinoids -- Includes Marijuana and Hash

· Amphetamines -- Includes Speed, Methamphetamines and amphetamines

· Opiates -- Includes Heroin, Opium, Codeine and Morphine

· Phencyclidine -- PCP

and Prescription medications

Also many test includes additional drugs such as:

· Barbiturates

· Hydrocodone

· Mehqualone

· Benzodiazepines

· Methadone

· Propoxyphene

· Ethanol

· MDMA or Ecstasy

Drugs that can be tested for, but are not commonly tested for include:

· LSD

·Alcohol

· Tryptamines

· Phenethylamines

· Inhalants

etc..

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12y ago

If it tested positive for opiates and you have not used any, there have been cases that indicate you can get false positives if you routinely eat a lot of poppy seeds and especially a whole lot before the testing. Opiate drugs are made from poppy plants, the seeds sold for use in cooking can register on the tests even though they do not really contain more than traces of the opiates, but the amount usually used in recipes or on breads isn't really enough to do that, you would have to be eating a LOT. If it were another type of drug that was positive, it depends on the drug that proved positive what might have caused that positive finding.

Contact buzz if you were around someone smoking marijuana and that is what was positive on the test. Apart from that, you wouldn't get a false positive on pot.

Aspirin will show up as cocaine. Cold medicine will show up as methamphetamines.

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12y ago

Illegal drugs. Oh, wait, those aren't falsepositives.

Several things can give a false positive on initial screening tests. However, if this happens to you, insist on being retested; there are more sensitive tests that basically don't give false positives and can confirm for certain that you're "clean".

That was why you were asking, right?

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12y ago

Poppy seed bagels can cause false positive for opiates

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Wiki User

11y ago

drink ALOT of water bout 4 hours before and a few drops of cheap bleach (with as little scent as possible)

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Q: What can cause False positives on oral drug tests?
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