九州・山口の飲食店、レストランの新しい潮流を発信するビジネスサイト「フードスタジアム九州」

How Long Does Fentanyl Stay In Your Body For?


Generally, fentanyl is able to be detected anywhere from 11 to 36 hours after the last dose is taken. Learn why mixing substances like Suboxone and alcohol can be dangerous and detrimental to recovery. It can cause harm or death to people with opioid use disorders or who may have accidental exposure to the drug. Many fatal overdoses thought to be from heroin have been from fentanyl. A small dose of fentanyl can be fatal depending on how tolerant someone is and their body size. Coroners’ offices and state crime laboratories do not test for fentanyl unless given a specific reason to do so.

  • It only takes a small amount to cause serious harm to anyone, regardless of opioid tolerance.
  • This is considered a highly ineffective method of testing, because fentanyl will not last in the blood for more than 12 hours.
  • Senator Jacky Rosen (D-NV) announced that bipartisan legislation she joined to crack down on international fentanyl trafficking passed the Senate last night and has been signed into law today.

While we are unable to respond to your feedback directly, we’ll use this information to improve our online help. American Addiction Centers (AAC) is committed to delivering original, truthful, accurate, unbiased, and medically current information. We strive to create content that is clear, concise, and easy to understand. If you are a medical doctor, clinician, or other professional in a field related to this topic and find errors or inaccuracies within this content, please contact us at You can receive 24/7 text support right away and at your convenience.

How Do Drug Tests Detect Fentanyl?

For this reason, your dose will be reviewed to make sure you’re only taking the amount you need to control your pain. Some people can become more sensitive to pain (hyperalgesia). If this happens, your doctor will reduce your dose gradually to help these symptoms.

  • Fentanyl drug use can’t be consistently detected by drug testing.
  • Often, withdrawal symptoms drive people to want to use again in order to make these uncomfortable symptoms go away.
  • When an outpatient counselor suggested residential treatment, he initially brushed off the suggestion.
  • When people who use drugs unknowingly consume something laced with fentanyl, they are at a greatly increased risk of overdose.

Smoking crushed fentanyl also causes the effects to be felt quite quickly, but it is hard to determine this without controlling for the dose being used. People who inject the drug will have it coursing through their bloodstream almost immediately. Snorting is second in line to injecting, though not all of the fentanyl is absorbed this way because much of it is swallowed and enters the bloodstream later by way of the stomach and digestive tract.

What is The Half-Life of Fentanyl?

Withdrawal is best done beneath professional medical supervision, in a safe and controlled environment. While the actual substance may be out of your system within this time, patients who take fentanyl should be aware that fentanyl will leave behind small traces known as metabolites. Hair drug tests are often used in tandem with positive urine or blood tests. This test helps to establish https://ecosoberhouse.com/article/how-long-does-fentanyl-stay-in-your-system/ a brief history of fentanyl use and reveal substance abuse patterns. Although fentanyl is much stronger than other opiates, it’s not commonly tested for on standard drug tests, which often aim to detect the presence of opioids that metabolize into morphine. Since fentanyl doesn’t metabolize into morphine, it’s unlikely to be detected unless an advanced drug test is ordered.

If you take recreational drugs, such as cannabis, cocaine or heroin, while you’re taking fentanyl, you’re more likely to get the serious side effects. These include breathing difficulties, heart problems such as high blood pressure, seizure or fits and even going into a coma. Most people die from respiratory depression and failure from an overdose of an opioid like fentanyl. This means breathing stops altogether, and they cannot get the oxygen their brain and body need to survive.

Getting Help For Fentanyl Addiction

To broaden your knowledge of fentanyl addiction, including discovering whether touching fentanyl can hurt you, browse our online resources. Some find that they are able to metabolize substances faster than others, while some find that substances stay in their body longer. Things like https://ecosoberhouse.com/ hepatic function, food intake at time of drug use, and metabolic rate, will all influence the speed at which one can get fentanyl out the system. You should not use fentanyl unless you are already being treated with a similar opioid pain medicine and your body is tolerant to it.


Fentanyl is a schedule 2 prescription drug with several serious side effects. BetterHelp can connect you to an addiction and mental health counselor. IV fentanyl has a much higher level of bioavailability than other routes. The time differences for the half-lives are due to the bioavailability of the drug.

ニュースフラッシュ一覧トップへ


;