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Doctor insights on: False Positive For Benzodiazepines In Urine Tests

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Do blood and urine tests test for benzodiazepines?

Do blood and urine tests test for benzodiazepines?

Of course: The screening is most often done using a blood or urine sample. These tests are sometimes administrated as part of an investigation for drug use or abuse. ...Read more

Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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Can two 24 hr 5 hiaa urine tests elevated at 50 be a false positive for carcinoid syndrome if all diet?

Can two 24 hr 5 hiaa urine tests elevated at 50 be a false positive for carcinoid syndrome if all diet?

Could be: If you have symptoms suggestive of carcinoid repeat 24 hour urine collection and also serum chromogranin-a level. Make sure you are not on nexoum or similar for few days. ...Read more

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Can Zoloft (sertraline) cause a false positive urine drug screen for benzodiadepines?

Can Zoloft (sertraline) cause a false positive urine drug screen for benzodiadepines?

Possible: It is possible and there is some data to support: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2728940/#__ffn_sectitle This could be a class effect with that class of drugs. Always talk to your doctor for anything medical. ...Read more

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I recently had a false positive urinalysis for cocaine and have been clean for 4 years. I am having urine retention and flow issues however. My parole?

I recently had a false positive urinalysis for cocaine and have been clean for 4 years. I am having urine retention and flow issues however. My parole?

Research and luck: Try to be calm and respectful but firm in your innocence and request a more reliable test. These things can happen and labs make errors. Read this to start: http://www.askdocweb.com/falsepositivecocaine.html Best wishes! ...Read more

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Is there any medical reason for an abnormally large number of false positives for benzodiazepines on urine drug screens?

Is there any medical reason for an abnormally large number of false positives for benzodiazepines on urine drug screens?

Benzodiazepines: Nope. But remember benzos can stay positive in the urine for six weeks. One false positive is occasionally seen, but not repeated testing. ...Read more

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Could taking 40+ Benadryl (diphenhydramine) cause a positive for benzodiazepines in a urine test?

Could taking 40+ Benadryl (diphenhydramine) cause a positive for benzodiazepines in a urine test?

Shouldn't: They are made of totally different chemicals even though either can make you drowsy. ...Read more

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Why do benzodiazepines show positive in my urine and i'm not sure what causes this when i'm not taking anything but blood pressure meds?

Why do benzodiazepines show positive in my urine and i'm not sure what causes this when i'm not taking anything but blood pressure meds?

False positive?: Some nonsteroidal medications can cause false positives for benzodiazepines: daypro, tolmetin (tolectin) Naproxen (aleve) Etodolac (lodine) and fenoprofen (nalfon). In some cases, the antidepressant zoloft (sertraline) can do it also. http://tinyurl.com/ks79fns i don't know of any antihypertensives known to cause this -- so i'm wondering if you also take some of these other meds? ...Read more

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The difference between Benzodiazepine and diazepam? It's a urine test and have seen1-6 weeks and 7-10 days, took 2.5 mg 10days ago first time in 2 yrs

The general term: benzodiazepines refers to a class of medicines used to help with anxiety, sleep, and sometimes seizures. Diazepam is a particular drug in the class. While most of the members of the benzodiazepine class are gone from the body in a few days, the specific drug diazepam (also knwn as Valium in the US) hangs around much longer. ...Read more

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I tested positive for benzodiazepine march 6th 2014, after taking 4 kolopin 1mg february 14 2014, why is this still showing up in my urine?

Very long half-life: Klonopin (clonazepam) has a very long elimination half-life: 18-60 hours. It takes 5 of these half-lives to effectively eliminate the Klonopin (clonazepam) from your system (supposing you're not still taking it). So depending on your metabolism this could take 12-14 days. If you're still taking a few of the pills, this would also register positive. ...Read more

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Does gabapentin cause a false positive on a urine drug test?

Does gabapentin cause a false positive on a urine drug test?

Not Likely: It is unlikely that Neurontin (Gabapentin) will trigger a false positive urine test for drugs. However, if you are taking other medications then these medication may alone or in combination with Neurontin trigger a positive urine screen. Also, poppy seeds and other foods, fermented or otherwise may result in positive screen. Here's a reference: http://dig.pharm.uic.edu/faq/2011/Feb/faq1.aspx ...Read more

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Can diabetes give a false positive for cocaine in a urine drug test or would it cancel the test?

Can diabetes give a false positive for cocaine in a urine drug test or would it cancel the test?

Myths: No. Not in any way would having diabetes cause a false positive or negative on a drug screening process for cocaine. ...Read more

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Is there an antihistimine that is safe to take and will not give you a dirty urine test, a false positive that benadrl can sometimes do?

Is there an antihistimine that is safe to take and will not give you a dirty urine test, a false positive that benadrl can sometimes do?

Urine drug test : Benadryl (diphenhydramine) may cause a false positive drug test to Methadone in screening urine drug test but there are no reports of Claritin / zyrtec / allergra being a problem. However, Claritin d, zyrtec d, allergra d may cause positive drug test to amphetamine since they contain pseudonephrine. ...Read more

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When getting a annual physical does the blood work include a drug test, and does the physical require a urine sample? I'm worried about false positive

When getting a annual physical does the blood work include a drug test, and does the physical require a urine sample? I'm worried about false positive

It does not: You can only be tested for drugs of abuse with your consent. Your physician doing your routine history and physical will not screen you for recreational substances. False-positive drug-of-abuse tests that have medicolegal consequences are very uncommon as the results must be verified by a test using a different chemical principle. And even if you're actually using, your physician is your friend. ...Read more

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Can miso soup cause false positive on etg urine test?

Can miso soup cause false positive on etg urine test?

No: If you have had a false positive for alcohol (ethyl glucuronide) or a drug abuse, and you know you did not use any drug, get a lawyer. Labs do make errors. There are a few problems with the ethyl glucuronide test. Or you may have an enemy who spiked your food. I'm sorry if this has happened. Good luck with this. ...Read more

Dr. Suzanne Galli
111 doctors shared insights

Benzodiazepines Level (Definition)

Testing blood levels of benzodiazepines is not a routine or common clinical test. It is done by simply taking a blood sample and testing it in the lab. It is most commonly done in research studies. An example of clinical use would be when there is a discrepancy between the prescribed dosage and ...Read more


Benzodiazepine (Definition)

They are used for anxiety ...Read more