Snorting Flexeril | Cyclobenzaprine Insufflation

Medically Reviewed by Johnelle Smith, M.D.

Updated on April 10, 2026

Flexeril is a prescription muscle relaxant that helps manage short-term muscle spasms and back pain. Snorting Flexeril may cause negative side effects, including a possible heart attack.

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Cyclobenzaprine is a prescription muscle relaxer that doctors commonly prescribe under brand names like Flexeril and Amrix. This medication is designed to help people deal with muscle pain and spasms when used along with physical therapy and other treatments. The drug works by slowing down the central nervous system, which helps muscles relax and reduces pain.

Doctors usually prescribe cyclobenzaprine for short periods of time or only when needed because it’s meant for temporary relief, not for long-term chronic pain management. However, some people abuse this medication by crushing the pills and snorting them to get faster or stronger effects, which is both dangerous and illegal when done without a prescription or outside of medical supervision.

Why People Snort Flexeril

While Flexeril does not create the same feelings of euphoria that benzodiazepines or opioids do when taken in higher doses, Flexeril does make people feel drowsy and will slow down vital functions.

People who abuse Flexeril may crush and dilute pills in water for faster oral intake, or they may crush and snort pills to get a faster high. Even though Flexeril doesn’t produce a traditionally sought after “high,” the act of crushing and snorting any prescription medication may be a sign of an emerging or existing substance abuse issue.

Side Effects Of Abusing Flexeril

When Flexeril is used exactly as a doctor prescribes, it can help improve sleep and overall quality of life for people dealing with muscle pain and spasms. However, when people take this medication just for its relaxing effects or to get high, it becomes dangerous drug abuse that can cause serious health problems. Using Flexeril recreationally is often a sign of a developing substance abuse disorder that needs professional treatment.

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Side effects of Flexeril abuse can include:

  • constipation
  • confusion
  • drowsiness
  • dizziness
  • indigestion
  • headache
  • palpitations
  • nervousness
  • blurred vision
  • dry mouth
  • fatigue
  • sore throat
  • bad taste in the mouth
  • unusual weakness

These side effects can interfere with daily activities like driving, working, or going to school, and they often get worse with continued abuse. People who experience these symptoms from using Flexeril inappropriately should stop taking the drug and seek medical help immediately. Getting treatment early can prevent more serious complications and help people learn healthier ways to manage stress and muscle pain.

Dangers Of Snorting Flexeril

In some circumstances, people can experience more extreme adverse reactions to snorting Flexeril. These serious effects can be life-threatening, especially if Flexeril is used alongside other central nervous system depressants such as alcohol, opioids, or benzodiazepines.

Dangers can include:

  • allergic reaction
  • loss of consciousness
  • low blood pressure
  • immune hypersensitivity reactions
  • irregular or rapid heartbeat
  • liver damage and jaundice

The risk of experiencing these dangerous effects increases dramatically when Flexeril is snorted or combined with other substances. Anyone showing signs of these serious reactions should call 911 right away, as waiting for symptoms to improve on their own can be fatal.

Physical Effects Of Snorting Drugs

Flexeril is not effectively ingested through nasal insufflation, yet people may still try to amplify its effects by snorting it like they would club drugs, prescription pills, or illicit narcotics and amphetamines.

Snorting any drug may lead to burning inside the nasal passages, nose bleeds, and runny nose in the short-term.

Snorting drugs may cause health problems such as:

  • runny nose or congestion
  • mouth ulcers
  • ear and facial pain/swelling
  • trouble swallowing
  • changes to the voice/hoarse throat
  • permanent damage to the nasal septum and mucous membranes

These physical effects can become permanent and may require expensive medical treatment or surgery to repair. What starts as minor irritation can quickly develop into serious infections or structural damage that affects breathing, eating, and speaking for the rest of someone’s life. The immediate desire to get high is never worth the lasting damage that snorting drugs can cause to the nose, throat, and surrounding areas.

The Link Between Flexeril Abuse And Polydrug Use

One of the most concerning patterns associated with Flexeril misuse is its frequent combination with other substances. Because cyclobenzaprine on its own produces relatively mild effects compared to opioids or benzodiazepines, many people who abuse it do so alongside alcohol, opioids, or other central nervous system depressants in an attempt to intensify the sedative experience. This combination dramatically increases the risk of respiratory depression, loss of consciousness, and fatal overdose, as the depressant effects of each substance compound one another in unpredictable ways.

People already battling opioid or benzodiazepine addiction are particularly likely to abuse Flexeril as a supplementary drug, especially when their primary substance is unavailable or unaffordable. In some cases, Flexeril is used specifically to stretch the effects of other drugs or ease withdrawal symptoms between doses. This pattern of polydrug use makes treatment more complex, as multiple substances and their associated withdrawal symptoms must be addressed at the same time.

Flexeril Overdose Signs And Symptoms

When taken to excess on its own, Flexeril overdose symptoms are typically not life-threatening. However, in some cases, especially for people with existing heart conditions, Flexeril overdose can be deadly.

Some signs of a Flexeril overdose may include:

  • chest pain
  • rapid or slowed heartbeat
  • hallucinations
  • vomiting
  • slurred speech
  • trouble breathing
  • extreme drowsiness
  • dry, flushed, or hot skin
  • severe drowsiness
  • increased or decreased body temperature
  • seizures
  • severe nervousness and restlessness
  • muscle stiffness

An overdose on Flexeril can result in cardiac arrest, seizures, and dangerously low blood pressure. Death from Flexeril overdose is rare, but it has been known to happen.

Treatment And Detox For Flexeril Drug Abuse

When someone uses Flexeril recreationally or takes too much just to feel sedated, they can develop cravings and addictive behaviors that are hard to control. Signs of Flexeril addiction include constantly seeking out the drug, refilling prescriptions for the wrong reasons, and lying to doctors to get more pills. When people try to stop using Flexeril after becoming dependent on it, they often experience uncomfortable withdrawal symptoms like extreme tiredness, strong cravings for the drug, headaches, and nausea that make it difficult to quit on their own.

People who have severe withdrawal symptoms may need medically supervised detoxification in a treatment facility where doctors can monitor their health and keep them safe during the process. Treatment options include inpatient programs that provide 24-hour medical care support, outpatient programs that allow people to live at home while attending therapy sessions, and intensive outpatient programs that offer more frequent counseling. Individual therapy helps people understand why they started abusing Flexeril, while group therapy connects them with others who have similar issues.

Long-term recovery from Flexeril addiction often requires ongoing support through aftercare programs, support groups like Narcotics Anonymous, and regular check-ins with counselors or doctors. Family therapy can help repair damaged relationships and teach loved ones how to support the person’s recovery without enabling their drug use.

This page does not provide medical advice. See more

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