Fentanyl is a synthetic opioid analgesic that was first synthesized by Paul Janssen, founder of Janssen Pharmaceutica. It has been used to treat moderate to severe pain in recent times but was also used as an anesthetic in the 1960s under the brand name ‘Sublimaze’. It is a hundredfold more potent than morphine and also has around 40-50 times more potency than pharmaceutical heroin.
How long does fentanyl stay in your urine, blood, saliva and hair follicle
|Urine Test||8-24 hours|
|Blood Test||12 hours|
|Saliva Test||Up to 3 days|
|Hair Follicle Test||Up to 3 months, i.e. 90 days.|
How long can the different forms of fentanyl show up on a drug test
|Fentanyl Patch||2.98-5 days|
|Fentanyl Lozenge||1.15-3.43 days|
|Intravenous Fentanyl||11-22 hours|
To understand how long fentanyl would stay in your system after you have stopped taking it, we must first take into account its elimination half-life. Each format of fentanyl, whether it be transdermal patches, transmucosal lozenges or intravenous administration has different half-life duration than the other.
IV fentanyl has an elimination half-life of around 2-4 hours. Like most drugs, fentanyl generally exhibits about 5.5 half-lives, it can be concluded that intravenously administered fentanyl would take around 11 to 22 hours to be completely eliminated from the blood plasma.
A transdermal patch is believed to have a much longer elimination half-life than the intravenous variant, clocking at around 13-22 hours, this puts the amount of time required by the system to process fentanyl and its eventual excretion at around 2.98-5 days.
The transmucosal fentanyl variant has an elimination half-life of 5-15 hours, thereby requiring 1.15-3.43 days for its full elimination.
It must be, however, noted that these timeframes may vary from person to person depending on certain individual factors like age, build, genetics, hydration levels, liver and kidney conditions, BMR. It must also be taken into consideration that how long the person has been on fentanyl for, how the drug has been administered to them, the amount of dosage, and of course, whether any other drugs are being co-administered, that might help or hinder the metabolism of fentanyl.
What is Darvocet Darvocet is a narcotic pain reliever, with the active ingredients propoxyphene and acetaminophen. It is mainly used in the treatment of ...
What is SAM-e SAM-e is a prescription medication used to treat arthritis and depression.