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How Long Does Fentanyl Stay In Your System

How Long Does Fentanyl Stay In Your

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Fentanyl is an opioid. It’s 50 times more potent than heroin and 100 times more powerful than morphine. How long does fentanyl stay in your system is good to know for those who have a history of substance abuse.

Fentanyl is a powerful opioid pain medication. In 2016, there were more than 20,000 overdose deaths due to fentanyl and other synthetic opioids in the U.S., according to the Centers for Disease Control and Prevention (CDC).

Fentanyl is highly addictive and causes respiratory depression (lack of oxygen in the blood). That’s why it’s so dangerous — it can be deadly if taken with other drugs. 

Unless you’re on a prescription for fentanyl or have a valid prescription for it, you should never attempt to use this drug recreationally or without medical supervision. 

Likewise, if you’ve used fentanyl without medical supervision, contact us to have a free addiction assessment. 

What Is Fentanyl? 

Fentanyl is a narcotic, or an opioid. It’s used to help with pain management and can be prescribed by doctors to patients suffering from severe chronic pain.

Fentanyl is a short-acting opioid. This means that it will work quickly, but only for a short period. 

It is absorbed quickly into your bloodstream and starts working within seconds.

Fentanyl can be used to treat pain, which is why it’s used as anesthesia during surgery or other procedures where you don’t want to feel any discomfort from being awake during the procedure. It may also be prescribed for cancer patients who have trouble tolerating other medications or who need something stronger than morphine (if they’ve been taking morphine).

It may be possible to pass a urine drug test after using fentanyl.

Fentanyl is a narcotic pain medication that has been used illegally as an intravenous drug for decades. If prescribed by a healthcare provider, It’s also available as

  • Pills
  • Shots
  • Patches

On the other hand, illegally prescribed Fentanyl is available as

  • Tablets
  • Capsules
  • Poder

But fentanyl can be detected in blood, urine, and hair as long as it’s present in the body. People searching how long does fentanyl stay in your system are concerned because they may need to pass the drug or urine test. 

This can reduce or eliminate any traces of fentanyl from being detected on your urine sample. It’s important to note that this strategy won’t work when dealing with other kinds of drugs such as marijuana or cocaine; those are likely still detectable even if they don’t appear on initial test results after using them for several days (or weeks).

How long does fentanyl stay in your system?

The effects of fentanyl can last anywhere from 30 minutes to several hours, depending upon the dosage and tolerance of the user. Likewise, the intensity of the effects of Fentanyl on your body and how long it will last in your body depend upon:

  • How you are using
  • How long you have been using
  • Amount of Fentanyl you are taking 

If you have used fentanyl within the past 48 hours (or if your urine tests positive), you may be able to pass a drug test by washing out your system with fluids before testing. Those who are searching about how long fentanyl stays in your system should know that Fentanyl stays 5-48 hours in blood, up to three months in hair, and 24-72 hours in urine. 

How does fentanyl compare to other opioids?

Fentanyl use is dangerous because it’s 50 times more potent than heroin and 100 times more potent than morphine.

Fentanyl’s potency makes it dangerous: It’s 50 times more potent than heroin and 100 times more potent than morphine. So when you’re using this drug recreationally or taking an overdose at home with friends, you may not even realize how much you’ve ingested until your heart stops beating—and that could be fatal! 

Combining fentanyl with other drugs can be deadly.

  • Combine fentanyl with other drugs, and you may be risking your life.
  • Fentanyl is a powerful drug that can cause death when combined with other drugs.
  • The FDA has issued warnings about combining fentanyl with other substances such as alcohol or benzodiazepines (anti-anxiety medications).

What Happens If You Take Too Much Fentanyl?

People who misuse fentanyl risk developing an addiction, which can lead to physical dependence and withdrawal symptoms when they’re not taking the drug.

If you’re using fentanyl and want to stop, there are some things to keep in mind. Fentanyl is a highly addictive drug, so you mustn’t relapse after treatment.

If you’ve been abusing fentanyl for a long time and have developed an addiction, your body will produce higher levels of neurotransmitters like dopamine when taken off the drug than when on it—this can lead to serious withdrawal symptoms including:

  • Muscle aches
  • Nausea and vomiting (although these may be temporary)
  • Diarrhea

The likelihood of becoming addicted to fentanyl is increased for people with a history of substance abuse.

When you’re addicted to fentanyl, it can be hard to stop. The risk of becoming addicted is increased for people with a history of substance abuse. This is because substance abuse can lead to physical dependence and withdrawal symptoms when they’re not taking the drug.

The likelihood of becoming addicted to fentanyl may also be higher if you have a family history of addiction or mental health disorders that affect your ability to control yourself (such as schizophrenia).

Symptoms of fentanyl withdrawal 

If you’re experiencing symptoms of fentanyl withdrawal, it’s important to seek medical attention. Symptoms include:

  • Insomnia and sleep disturbances
  • Vomiting or nausea
  • Diarrhea and constipation
  • Muscle aches (particularly in the back)

Because opioid withdrawals can be so unpleasant, those who are addicted to fentanyl should seek treatment for their withdrawal symptoms rather than trying to go through it alone.

You may notice some of the following:

  • Abdominal cramping and pain. This is a common symptom of opioid withdrawal, which occurs when your body becomes used to taking the drug and stops producing enough naturally occurring opioids in the brain and spinal cord (the neurotransmitter that sends messages between cells). The result is a sudden drop in brain levels of these chemicals, causing you to experience discomfort or pain as your nerve endings send signals back down into your stomach, intestines, heart, and other organs where they’re normally located.
  • Gastrointestinal issues. These include nausea (feeling sick), vomiting (throwing up), or diarrhea (losing large quantities of liquid from inside). Some people also experience constipation due to low levels of serotonin production by their brains—a condition called SSRI syndrome—that causes them not only to feel physically uncomfortable but mentally so as well; this can make for an extremely unpleasant experience if left untreated!

Medication For Fentanyl Addiction

Suboxone is a medication used to treat opioid addiction and also acts as an opioid blocker. It’s typically taken once per day, but some people report taking it twice per day when they have trouble staying awake during the day and need help staying awake at night while they’re sleeping.

Need to know about the best suboxone doctors near you? Feel free to contact Addicted Recovery

Ask For Help If You Have Fentanyl Addiction

The best thing to do if you think you might be addicted to fentanyl is to seek help immediately. The symptoms of withdrawal are uncomfortable and can be life-threatening, so you must get professional treatment as soon as possible. You may not feel like going through this alone, but there are resources available that can help you through this process and make recovery easier.


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Medically reviewed by DR.Reckitt.

Claire Wilcox, MD, is a general and addiction psychiatrist in private practice and an associate professor of translational neuroscience at the Mind Research Network in New Mexico; and has completed an addictions fellowship, psychiatry residency, and internal medicine residency. Having done extensive research in the area, she is an expert in the neuroscience of substance use disorders. Although she is interested in several topics in medicine and psychiatry, with a particular focus on substance use disorders, obesity, eating disorders, and chronic pain, her primary career goal is to help promote recovery and wellbeing for people with a range of mental health challenges.

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AddictedRecovery aims to improve the quality of life for people struggling with substance use disorder and mental health issues. Our team of licensed medical professionals research, edit and review the content before publishing. However, this information is not intended to be a substitute for professional medical advice, diagnosis, or treatment. For medical advice please consult your physicians or ChoicePoint’s qualified staff.

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