Table of Contents
- 1 What can benzoylecgonine be found in?
- 2 What drugs can cause a false positive for benzoylecgonine?
- 3 What drugs have benzoylecgonine?
- 4 What foods can cause false-positive drug test?
- 5 What is the legal limit for benzoylecgonine?
- 6 Can melatonin make you test positive?
- 7 Will gabapentin show a false positive?
- 8 Can vitamins cause a positive drug test?
What can benzoylecgonine be found in?
cocaine
Benzoylecgonine is the major metabolite of cocaine. It is formed by hydrolysis of cocaine in the liver, catalysed by carboxylesterases. It is excreted in the urine of cocaine users after processing in the liver.
What drugs can cause a false positive for benzoylecgonine?
There is an isolated report of antibody-mediated interference in EMIT for benzoylecgonine. However, true positive test results may occur due to drinking herbal tea containing cocaine or application of cocaine as an anesthetic agent during ENT surgery.
What drugs have benzoylecgonine?
Benzoylecgonine
- Solid-Phase Extraction.
- Methamphetamine.
- Metabolite.
- Cocaine.
- Quantum Dot.
- Amphetamine.
- Morphine.
- Ecgonine Methyl Ester.
What over the counter drugs will test positive for benzodiazepines?
Table 1: Drugs Reported to Cause a False Positive Urine Drug Screen
| Substances that may interfere with drug testing*: | Reported false positive result*: |
|---|---|
| trimipramine (Surmontil) | amphetamines1 |
| venlafaxine (Effexor XR) | phencyclidine (PCP)1,8 |
| verapamil (Calan SR) | methadone8, other opiates1 |
What can make you test positive for Benzos?
False-positive Screens A search of false positive benzodiazepine screenings showed the selective serotonin reuptake inhibitor (SSRI) sertraline (Zoloft, others) and the non-steroidal anti-inflammatory drug (NSAID) oxaprozin (Daypro, others) to be associated with, or possible causes of, these false-positive results.
What foods can cause false-positive drug test?
Table 1: Drugs Reported to Cause a False Positive Urine Drug Screen
| Substances that may interfere with drug testing*: | Reported false positive result*: |
|---|---|
| coca leaf tea | cocaine1 – see notes below |
| cocaine anesthetics, topical | cocaine1 |
| cyclobenzaprine (Amrix, Fexmid) | tricyclic antidepressants1 |
| cyproheptadine | tricyclic antidepressants1 |
What is the legal limit for benzoylecgonine?
50 micrograms per litre
The legal limit for Benzoylecgonine is 50 micrograms per litre of blood (50ug).
Can melatonin make you test positive?
Patients actively taking melatonin (over-the-counter sleep aid), carvedilol (high blood pressure and heart failure treatment) or paroxetine (antidepressant), are less likely to test positive than patients not taking the drugs.
Can naproxen show up as a benzodiazepine?
Some other medicines can cause a false positive result in benzodiazepine urine tests. These medicines include: Tolmetin. Naproxen.
Can Prozac show up as a benzo?
Certain antidepressant drugs are more prone to false-positive readings. For example, Wellbutrin (bupropion), Prozac (fluoxetine), and Desyrel (trazodone) can all potentially show up as amphetamines in a drug screen. Similarly, Zoloft (sertraline) may show up as a benzodiazepine.
Will gabapentin show a false positive?
Gabapentin and pregabalin have a minimal risk of causing false-positives and are other options that could be used.
Can vitamins cause a positive drug test?
Conclusions: Vitamin C in urine can cause significant interference with urine strip tests. A urine strip with a vitamin C indicator is useful to reduce the risk of incorrect results in regard to disease states.