What Should You Expect During Fentanyl Withdrawal?

Fentanyl withdrawal can be intense and challenging, similar to other opioid withdrawal, but potentially with greater severity due to the drug’s potency. Individuals may experience flu-like symptoms such as severe muscle aches and bone pain, chills, sweating, intense cramping, and nausea, along with more severe effects like anxiety, insomnia, and intense cravings. Fentanyl withdrawal symptoms begin within 12 to 30 hours after the last dose and last up to a week or longer. Due to the risks and complications involved with fentanyl withdrawal, medical drug detox in Florida is strongly recommended to ensure safety and increase the chances of long-term recovery.

 

withdrawal symptoms fentanyl

Table of contents

» When Do Fentanyl Withdrawal Symptoms Start?

» What Are the Common Symptoms of Fentanyl Withdrawal?

» How Long Does Fentanyl Withdrawal Last?

» What Does Medical Detox for Fentanyl Involve?

» Key Takeaways on Fentanyl Withdrawal Symptoms

» Resources


When Do Fentanyl Withdrawal Symptoms Start?

Fentanyl is an extremely potent synthetic opioid, potentially up to 100 times more powerful than morphine, leading users to develop dependence quickly. When someone stops using fentanyl after prolonged use, withdrawal symptoms can start rapidly and may be intense. Typically, fentanyl withdrawal symptoms begin within 12 to 30 hours, due to its short half-life as a potent, short-acting opioid.

The precise timing and length of withdrawal can differ based on various factors, including the person’s metabolism, the amount and frequency of fentanyl use, and whether other substances were also being used. Initial symptoms may present mildly but can escalate rapidly in the days that follow.

Although fentanyl withdrawal is generally not life-threatening, unlike withdrawal from substances such as alcohol or benzodiazepines, it can still carry certain risks or complications in some instances, including the potential for relapse. Individuals who relapse after a period of abstinence have a diminished tolerance, and if they return to their previous dosage, they risk accidental overdose.

Moreover, some individuals might face increased blood pressure and heart rate, severe dehydration, and deteriorating mental health conditions that could lead to self-harm, underscoring the importance of medically supervised Florida drug detox treatment during the withdrawal phase.


What Are the Common Symptoms of Fentanyl Withdrawal?

The symptoms of opioid withdrawal are generally quite severe and distressing, but they become even more pronounced with fentanyl due to its significantly higher potency. Withdrawal from fentanyl can present both physical and emotional challenges, and while individual experiences may differ, several symptoms are frequently reported during this process.

According to the Cleveland Clinic, some early fentanyl withdrawal symptoms can resemble those of a severe cold or flu. Commonly reported symptoms include:

  • Muscle and bone pain throughout the body
  • Nausea, vomiting, and diarrhea
  • Abdominal cramping
  • Sweating and chills
  • Runny nose
  • Watery eyes
  • Yawing
  • Dilated pupils
  • Increase heart rate
  • Elevated blood pressure
  • Insomnia
  • Restless and uncontrollable leg movements
  • Fever
  • Intense cravings
  • Anxiety and agitation
  • Irritability
  • Depression
  • Mood swings
  • Difficulty concentrating

How Long Does Fentanyl Withdrawal Last?

The length of fentanyl withdrawal can differ significantly from one individual to another, influenced by various factors such as personal health aspects like age, metabolism, liver and kidney function, and overall physical condition. For example, a study published in the journal Addiction revealed that individuals with a higher body mass index, particularly those who are overweight or obese, exhibited slower fentanyl clearance compared to those with a lower body mass index, as fentanyl is a highly lipophilic opioid.

While most acute physical symptoms generally resolve within a week to ten days, some psychological and less severe physical symptoms may persist for a longer duration. Understanding what to anticipate during fentanyl withdrawal is essential for both individuals and their support networks to establish realistic expectations, prepare for the varying intensities of symptoms, and recognize the significance of support throughout the journey. Below is a general fentanyl withdrawal timeline:

  • 6-12 hours after the last dose (Onset): Initial symptoms typically start to manifest, which may include mild anxiety, agitation, restlessness, muscle aches, yawning, sweating, runny nose, and watery eyes. Extended-release formulations, such as patches, may delay the onset of symptoms, sometimes taking up to 48 hours to become apparent.
  • 24-72 hours after the last dose (Peak): During this timeframe, fentanyl withdrawal symptoms usually reach their maximum intensity, and individuals may endure severe muscle and bone pain, intense nausea, vomiting, diarrhea, abdominal cramping, insomnia, increased heart rate, and intense drug cravings. This phase is often considered the most challenging part of withdrawal.
  • 7-10 days after the last dose (Resolution): Physical withdrawal symptoms typically begin to diminish significantly, although some discomfort and cravings may continue.
  • Beyond 10 days to several weeks/months (Post-Acute Withdrawal Syndrome – PAWS): Some individuals may experience lingering psychological symptoms for weeks or even months, which can include anxiety, depression, insomnia, fatigue, irritability, difficulty concentrating, and persistent cravings.

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What Does Medical Detox for Fentanyl Involve?

Medical detox is a crucial first step in addiction treatment, designed to safely manage the intense and uncomfortable withdrawal symptoms that arise when someone stops using opioids. As noted by WebMD, those who have been using fentanyl for over two weeks may face intense withdrawal symptoms and should seek medical supervision during the detox process.

Drug detox programs provide round-the-clock medical oversight, Medication-Assisted Treatment (MAT), and a tailored approach to reduce discomfort and avert complications. This process also paves the way for individuals to transition into long-term rehabilitation care, which can significantly increase success rates after drug rehabilitation.

Managing the stages of fentanyl withdrawal through supervised detox typically involves:

  • Comprehensive Assessment: Upon admission, a team of clinicians conducts a thorough physical and mental assessment to create an individualized treatment plan tailored to each patient’s specific needs.
  • 24/7 Medical Monitoring: Throughout the detox process, individuals are continuously monitored by healthcare professionals who will track vital signs, observe withdrawal symptoms, and respond quickly to any emerging medical issues.
  • MAT: This is the cornerstone of fentanyl detox, which includes medications like methadone, buprenorphine, non-opioid pain relievers, anti-nausea and diarrheal medications, and sleep aids to alleviate withdrawal symptoms and cravings.
  • Symptomatic Support: Beyond specific medications, the medical team provides general supportive care, including ensuring proper hydration through IV fluids, balanced nutrition, and a comfortable, safe environment.
  • Transition to Ongoing Treatment: Medical detox is only the first step in the recovery process, and once the person is physically stable, they are encouraged to transition into a comprehensive addiction treatment program, such as inpatient or outpatient rehab.

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fentanyl withdrawal symptom

Key Takeaways on Fentanyl Withdrawal Symptoms

  • Withdrawal from Fentanyl is Extremely Intense and Difficult: Given fentanyl’s remarkable potency—up to 100 times more potent than morphine—withdrawal symptoms are frequently more intense than those associated with other opioids.
  • Fentanyl Withdrawal Symptoms Emerge Rapidly: As fentanyl is a short-acting substance, withdrawal symptoms can begin as soon as 12 to 30 hours after the last dose, although the use of patches or extended-release formulations may postpone the onset for up to 48 hours.
  • Individuals May Face Both Physical and Psychological Symptoms: These can encompass muscle and bone discomfort, chills, excessive sweating, nausea, vomiting, diarrhea, fever, anxiety, insomnia, depression, and overwhelming drug cravings.
  • Duration of Withdrawal Symptoms: Acute symptoms generally subside within 7 to 10 days, but they can persist for up to two weeks. Psychological effects may linger for weeks or even months, a condition referred to as PAWS.
  • Medical Detox is Highly Advised: Due to potential risks such as dehydration, heart complications, relapse, and deterioration of mental health, a medically supervised detox offers a safer withdrawal experience through continuous monitoring, medication assistance, and emotional support.

WhiteSands Treatment provides a secure and welcoming space for those struggling with fentanyl dependence and addiction, helping to alleviate withdrawal symptoms. Our medical detox programs are structured to ensure 24/7 supervision by a dedicated team of healthcare professionals, tailored treatment plans, FDA-approved medications, and continuous access to psychological support.

After completing detox, individuals can seamlessly transition into one of our comprehensive opioid rehabilitation programs, which tackle the underlying issues of addiction and foster a nurturing community of specialists and peers aimed at achieving lasting recovery. For a private consultation, contact WhiteSands Alcohol and Drug Rehab today at 877-855-3470 to learn how you can begin your journey toward a healthier, more fulfilling life.


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If you or a loved one needs help with abuse and/or treatment, please call the WhiteSands Treatment at (877) 855-3470. Our addiction specialists can assess your recovery needs and help you get the addiction treatment that provides the best chance for your long-term recovery.

About the Author

Jaclyn

Jackie has been involved in the substance abuse and addiction treatment sector for over five years and this is something that she is truly eager about. She has a passion for writing and continuously works to create informative pieces that not only educate and inform the public about the disease of addiction but also provide solutions for those who struggle with drug and alcohol abuse.