This is one of the most potent drugs during more than 50 years.
This is one of the most effective pain killers, prescribed to patients with severe pain.
This is one of the most addictive opioids.
At the same time, being prescribed or used illegally, synthetic opioid drug Fentanyl was the reason of 18% overdose last year.
What is Fentanyl detection times in urine test?
Detection window depends on, first of all, of the form of the drug. Here are average time frames for prescribed Fentanyl after stop using it (for young persons):
Intravenous injection |
Transmucosal (lozenge, sublingual tablet, buccal tablet) |
Transdermal (patch) after removed |
22-24 hrs (up to 1 day) |
36-48 hrs (up to 2 days) |
72-96 hrs (3-4 days) |
As you see intravenously administered Fentanyl will be flushed out of the system quickly. The transmucosal and transdermal Fentanyl stays longer. In 4-5 days urine will be clean. If you have no time to wait, here's same day opiate cleaner.
What factors influence to Fentanyl elimination?
Individual features. Fentanyl becomes detectable in urine rapidly after using, but the duration of detection vary. That's in some cases after single ingestion it can show up in urine up to 4-5 days.
Doses and duration. You understand, that it's a big difference between pain treatment after surgery and used for getting high for years, right?
Age. It's proven by a clinical study, that elderly person Fentanyl excretion is in 3 times slower.
Body mass. Fentanyl is fat soluble. So then greater body mass — then higher concentration and longer elimination.
Hepar function. Those who have hepatic decreases like cirrhosis have to know about lower excretion of Fentanyl and danger of high dosage.
Fluids intake. Fentanyl rids out of the system by urination. So, those who consume a lot of water, flash Fentanyl out faster. This can helps clean your system of Fentanyl and other opioids.
Energy burning. In another word, this called metabolic rate and associated with body fat. So larger fat amount, so lower metabolic rate, so slower fat soluble drug excretion.
Drug combination. There are two groups of drugs that affect on Fentanyl excretion:
Decreases elimination — it stays longer:
- Clarithromycin,
- Ketoconazole,
- Indinavir,
- Nelfinavir,
- Ritonavir.
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Increases elimination — it gets out faster:
- Carbamazepine,
- Oxcarbazepine,
- Modafinil,
- Phenobarbital,
- Phenytoin,
- Rifampicin,
- St. John's wort.
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Remember:
If you combine Fentanyl with other opiates, the risk of overdose greatly increases.
What about Fentanyl urine testing?
They do not test Fentanyl during standard drug screening. But it is pretty easy to detect fentanyl in urine using gas chromatography/mass spectrometry (GC/MS) method.
To avoid failing Fentanyi urine drug test:
- Stop at least 5-7 days before the test.
- Stay away from drugs. If you use it without a medical appointment, don't risk.
- Do not combine Fentanyl with benzos, opiates, alcohol.
- Drink a lot. It helps to eliminate Fentanyl and its by-products.
- Be on a healthy diet.
- Don't be lazy.
- Help yourself to be sure that your body rids Fentanyl out.
Kill pain, if you need. Don't kill yourself.
