Doctor insights on: What does fentanyl show up as in drug test

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Dr. Alan Wartenberg
585 Doctors shared insights

Drug Testing (Definition)

It is the process of examining body fluids or tissue for evidence of chemicals taken or not taken. It does not diagnose addiction however this a ...Read more


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Why would hydrocodone show up in a urine drug test when u only take oxycodone and use fentanyl patches?

Because u r alive!: Those drugs are all opiods and the body has metabolic pathways that intraconvert one drug into another. That's biochemistry for you. You can look up the pathways in Goodman & Gilman if you want to. Great book on pharmacology. ...Read more

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What would cause a false negative urine drug test for fentanyl patches?

What would cause a false negative urine drug test for fentanyl patches?

Errors: 1. Not wearing the patch, an exhausted patch, a placebo patch
2. The test was not specific for fentanyl
3. Lab error
4. Specimen misidentification. ...Read more

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Is there anything that could cause a false positive drug test for fentanyl?

No: Conventional urine drug screens (uds) look for metabolites from naturally occurring opioids (like morphine and codeine), but fentanyl is a synthetic opioid which is metabolized to different products. These products are not picked up by uds. ...Read more

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What type of drug test can I have done on my daughter to check for fentanyl hereing she's using fentanyl patch and cuttin peices an putting under tonge?

Urine drug screen: A typical urine drug screen will pick up fentanyl as an opiate. I am sure the ones you buy over the counter at CVS test for opiates. Good luck in helping your daughter! ...Read more

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Can someone taking morphine sulfate test positive for fentanyl in a saliva drug test, although they have never taken fentanyl ever?

Yes,: Both drugs in the same class (opioids) so they will both show up the same. Fentanyl is a synthetic opioid and much stronger than morphine. When testing for Morphine, it will show positive for morphine metabolites or fentanyl. Take care. ...Read more

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Well nyquil show u on a drug test?

Well nyquil show u on a drug test?

Nyquil: No, but it can give false positive results for amphetamines, heroin, opiates, Methadone or ecstacy. ...Read more

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Could lidocaine show on a drug test?

No: Some people think because it has "caine" in it that it could show up as cocaine, but it is a completely different chemical with no overlap with any drugs of abuse. Test kits do not test for it, and confirmatory tests like gas chromatography/mass spectroscopy will determine exactly what it is if there is any question on the screening tests. ...Read more

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What shows up on a doctors drug test?

What shows up on a doctors drug test?

Depends: If you are afraid of something showing up on a drug test, then don't use the drug. If you are using a drug to "treat" a symptom, talk to your doctor to get help. ...Read more

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Will anzemet show up in a drug test?

Will anzemet show up in a drug test?

Anzemet: No, but it is a powerful medication with drug-drug interactions. ...Read more

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Does tramadol show up on a drug test?

Does tramadol show up on a drug test?

No: Tramadol is usually not a drug that is tested for on a standard urine drug screening test cup. It can be detected if the ordering physician specifically requests for it to be tested. ...Read more

Dr. Alan Ali Dr. Ali
1 doctor agreed:
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Do OTC diet pills show up on drug test?

No Show: No otc diet pill I am aware of would be screened in standard urine toxicology screening. ...Read more

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Will metaxalone show up on a drug test?

Will metaxalone show up on a drug test?

Occasionally: Metaxalone is not a drug of abuse, so most labs won't te st for it. Unless someone asks. Most urine tox screens are 2-part: a dipstick immediately to get a rough idea of what you've been taking, and a lab confirmation run on sensitive instruments to break down what the exact meds are in you, and in what concentration ...Read more

Dr. Norman Cohen
220 Doctors shared insights

Sublimaze (Definition)

Sublimaze is a drug that increases narcotic effects which is a ...Read more


Dr. James Henning
718 Doctors shared insights

Fentanyl (Definition)

Fentanyl is a ...Read more