Flexeril (Cyclobenzaprine) Withdrawal: Quitting, Symptoms, Timeline, & Help

Updated November 25, 2025

Written By:

Dr. Matt A. D’Urso
LMHC, LPCC

Content Manager:

Amy Leifeste

Editor:

Karena Mathis

Written By:

Dr. Matthew A. D’Urso
LMHC, LPCC

Content Manager:

Amy Leifeste

Editor:

Karena Mathis

Table of Contents

Flexeril (Cyclobenzaprine) Withdrawal: Quitting, Symptoms, Timeline, & Help

Flexeril (cyclobenzaprine) is a muscle relaxant commonly prescribed to alleviate discomfort caused by muscle spasms and injuries. While it can be effective for short-term relief, its misuse can lead to unintended consequences, including physical dependence and withdrawal upon discontinuation. Cyclobenzaprine withdrawal symptoms can be physically and emotionally challenging, making quitting without professional intervention difficult.

This guide explores Flexeril abuse, withdrawal symptoms, and the detox process. You will also discover how to connect with compassionate, evidence-based treatment of muscle relaxer withdrawal.

Take the first step. Start addiction treatment today.

Get effective treatment for substance use and mental health disorders at our insurance-covered programs. Call now to get started.

Flexeril Abuse

Flexeril (cyclobenzaprine) is often prescribed to relieve muscle pain and stiffness caused by injuries, strains, or spasms. It is a short-term solution designed to complement rest and physical therapy when taken as directed. However, some people misuse the medication by taking higher doses or using it without a prescription, seeking sedation or relaxation.

Although Flexeril is not classified as a controlled substance, it still carries a risk of misuse and dependence. People may combine it with other substances like alcohol, opioids, or benzodiazepines to intensify its sedative effects, which can provoke dangerous outcomes, including overdose, dependence, and addiction.

Signs of Flexeril Abuse

Identifying the signs of Flexeril abuse early can help inform timely intervention. Common indicators include:

  • Taking Flexeril in higher doses or more frequently than prescribed.
  • Using the drug without a medical reason or prescription.
  • Combining Flexeril with alcohol or other drugs to amplify its effects.
  • Behavioral changes such as irritability, secrecy, or social withdrawal.
  • Increased drowsiness, confusion, or impaired coordination.
  • Experiencing Flexeril withdrawal symptoms upon discontinuation.

If left unaddressed, Flexeril abuse can lead to physical dependence and withdrawal, making it harder for individuals to quit without support.

Side Effects from Flexeril

Flexeril is known for its sedative properties, but it can also cause a range of side effects that vary in severity depending on the dose, frequency of use, and individual health factors. Even when taken as prescribed, some people may experience uncomfortable symptoms.

The most frequently reported side effects of Flexeril include:

  • Drowsiness: The drug’s sedative nature often makes people tired or sluggish.
  • Dry mouth: A common complaint, as Flexeril can reduce saliva production.
  • Headaches: Mild to moderate headaches may occur, especially during the early stages of use.
  • Dizziness: A sense of lightheadedness can affect balance and coordination.
  • Nausea: Some individuals experience an upset stomach or feelings of queasiness when taking this medication.

In some cases, Flexeril can cause more serious health concerns, particularly if taken in high doses or combined with other substances. Severe side effects may include:

  • Irregular heartbeat: Flexeril can affect the cardiovascular system, potentially leading to palpitations or arrhythmias.
  • Seizures: High doses of Flexeril may lower the seizure threshold, putting individuals at risk.
  • Confusion or hallucinations: Excessive use can interfere with brain function, causing disorientation or visual and auditory disturbances.
  • Difficulty breathing: In rare instances, respiratory depression may occur, especially when Flexeril is combined with alcohol or other sedatives.

Prolonged use of Flexeril, even without misuse, may lead to tolerance, where the body requires higher doses to achieve the same effects. This increases the risk of physical dependence, making cyclobenzaprine withdrawal more likely when the medication is stopped. Over time, habitual use can contribute to memory issues, cognitive impairments, and reduced overall quality of life.

Combining Flexeril with central nervous system depressants like alcohol or benzodiazepines can compound sedative effects, leading to extreme drowsiness, impaired judgment, or even life-threatening respiratory depression. The medication should be used only as directed by a healthcare provider.

If you or someone you know is experiencing severe side effects or shows signs of Flexeril misuse, seek professional medical advice. Early intervention can help prevent the development of dependence and other health complications.

Get Insurance-Covered Addiction Treatment

Our world-class addiction treatment program offers insurance coverage up to 100% for most PPO policies. Click below to get a quote. 

Cyclobenzaprine Withdrawal Symptoms

Withdrawal from cyclobenzaprine (Flexeril) is less common than with other substances. Still, it can occur, particularly in individuals who have been using the drug for extended periods or in high doses. The symptoms of withdrawal from Flexeril are typically mild but can still be uncomfortable and disruptive to daily life. Stopping cyclobenzaprine abruptly increases the chance of severe symptoms.

When someone stops taking cyclobenzaprine after regular use, they may experience symptoms similar to those seen with tricyclic antidepressant withdrawal. Withdrawal from muscle relaxers may trigger the following:

  • Nausea: Feeling queasy or experiencing an upset stomach is one of the most commonly reported symptoms of Flexeril withdrawal.
  • Headaches: Withdrawal may trigger tension or pressure in the head, ranging from mild to severe.
  • Fatigue: The sedative effects of Flexeril can linger, leaving individuals feeling drained or sluggish after stopping.
  • Malaise: A general discomfort or unease is common during Flexeril withdrawal.
  • Irritability: As the body adjusts to the absence of the medication, mood swings or increased sensitivity to stress may occur.
  • Difficulty sleeping: Insomnia or disturbed sleep patterns are often reported as the brain rebalances its natural rhythms.

In some cases, individuals may experience more severe withdrawal effects, especially if they stop using cyclobenzaprine abruptly. These may include:

  • Muscle pain: Discomfort or stiffness can return as the medication leaves the system.
  • Anxiety or restlessness: Emotional symptoms can sometimes accompany physical withdrawal.
  • Heart palpitations: While uncommon, some individuals may notice an irregular or rapid heartbeat during withdrawal.

Although these symptoms are usually not life-threatening, they can still be distressing. Consulting a healthcare professional is integral to managing withdrawal safely and comfortably.

Cyclobenzaprine Withdrawal Timeline

The Flexeril withdrawal timeline can vary depending on the dosage, duration of use, and individual health. However, most people experience general patterns when stopping Flexeril.

Early phase: 1 to 2 days after the last dose

During the first 24 to 48 hours, withdrawal symptoms may emerge. This phase often includes:

  • Headaches
  • Nausea
  • Fatigue
  • Mild irritability or restlessness

For many individuals, these symptoms are manageable, but the discomfort can be more pronounced if Flexeril use is heavy or prolonged.

Peak phase: 2 to 4 days after the last dose

Withdrawal symptoms typically peak within this timeframe. The most intense symptoms during this period may include:

  • Increased headaches and nausea
  • Trouble sleeping or restlessness
  • Emotional symptoms, such as mood swings or heightened anxiety

This phase can feel challenging, but it is generally short-lived. Proper hydration, rest, and support from medical professionals can help ease the discomfort.

Gradual resolution: 1 to 2 weeks after the last dose

By the end of the first week, most withdrawal symptoms begin to subside. Fatigue and minor headaches may persist, but the overall severity of symptoms should decrease. For individuals who used cyclobenzaprine alongside other substances, such as alcohol or opioids, the withdrawal timeline may be longer and more complex due to interactions between substances.

How Long Does Withdrawal Last?

The duration of cyclobenzaprine withdrawal varies from person to person, but most people can expect symptoms to resolve within one to two weeks. Factors influencing the length of withdrawal include:

  • Duration of use: Longer use increases the likelihood of withdrawal and can prolong recovery.
  • Dosage: Higher doses may take more time for the body to eliminate.
  • Concurrent substance use: Withdrawal can be more complicated and last longer if cyclobenzaprine is combined with alcohol, opioids, or other medications.
  • Individual health: Age, metabolism, and overall physical health can influence how quickly the body recovers.

In rare cases, withdrawal symptoms may persist for several weeks, particularly for individuals with underlying health issues or those who abruptly stopped using the drug. This condition, sometimes called protracted withdrawal or PAWS (post-acute withdrawal syndrome), should be managed under medical supervision.

The safest way to stop using Flexeril is through a gradual tapering process supervised by a medical professional. A cyclobenzaprine taper-off allows the body to adjust to lower doses over time, minimizing the intensity and duration of withdrawal symptoms.

Professional detox programs offer medical and emotional support to ensure a smoother recovery process for those experiencing severe or prolonged symptoms. They can also provide access to medications, counseling, and other resources tailored to individual needs.

Effective treatment for addiction, founded by people in recovery.

We’re passionate about helping you overcome addiction because we’ve been there. With founders and many staff having gone through recovery themselves, our evidence-based treatment programs are built on a foundation of empathy & a desire to see you succeed. 

Get Help for Flexeril Abuse at Renaissance Recovery

If you have been misusing prescription drugs like Flexeril, we can help you get your life back on track at Renaissance Recovery. We treat all addictions and mental health issues at our luxury rehabs in California and Florida.

When you choose one of our outpatient programs, you’ll continue living at home and attend therapy sessions around your everyday commitments. This provides a flexible and affordable pathway to recovery.

All prescription drug addictions are unique, so all our treatment plans are customized to reflect this. Therapies might include:

  • Medication management
  • Counseling
  • Motivational therapies
  • Psychotherapies
  • Family therapy
  • Holistic treatments
  • Group therapy
  • Aftercare planning

When you’re ready to move beyond Flexeril addiction, call 866-330-9449.

Sources

1. https://medlineplus.gov/druginfo/meds/a682514.html
2. https://www.accessdata.fda.gov/drugsatfda_docs/label/2013/017821s051lbl.pdf
3. https://pubmed.ncbi.nlm.nih.gov/11224198/
4. https://sbmi.uth.edu/heroes/documents/Post-Acute-Withdrawal.pdf

SHARE THIS POST

THERE IS ALWAYS HOPE

At Renaissance Recovery our goal is to provide evidence-based treatment to as many individuals as possible. Give us a call today to verify your insurance coverage or to learn more about paying for addiction treatment.

Check My Insurance Coverage

Submit Your Insurance

Text a Recovery Expert

Text our team to get the help you need ASAP.

Use Our 24 Hour text line. You can ask questions about our program, the admissions process, and more.Â