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Clinical resource

Robaxin Addiction

Robaxin, or methocarbamol, is often seen as a simple muscle relaxant that helps people get through painful injuries, strained muscles, and days when movement feels impossible. For many, it brings real relief by easing…

Medically reviewed byDr. Sarah Boss, MD
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Quick Summary

  • Robaxin, or methocarbamol, is a muscle relaxant with relatively low addiction risk, but misuse can still develop through excessive or recreational use.
  • Combining Robaxin with alcohol, sleeping pills, or other sedatives increases the risk of severe drowsiness, breathing difficulty, hallucinations, and overdose.
  • Warning signs of misuse include cravings, escalating doses, seeking multiple prescriptions, neglecting responsibilities, isolation, and feeling unable to function without the medication.

Robaxin, or methocarbamol, is often seen as a simple muscle relaxant that helps people get through painful injuries, strained muscles, and days when movement feels impossible. For many, it brings real relief by easing spasms and allowing the body to heal. But like any medication that affects the nervous system, it also carries risks when it’s misused. This is especially true for people who take it in higher doses than prescribed or combine it with alcohol or other sedatives in search of stronger effects.

Even though methocarbamol isn’t considered addictive in the same way opioids are, misuse can still happen, and the consequences can be serious. Understanding how Robaxin works, how misuse develops, and what warning signs look like can help protect you or someone you care about from slipping into dangerous patterns without realizing it.

Robaxin abuse usually occurs when people mistake these muscle relaxants for opioids with side effects of Robaxin similar to other narcotics such as drowsiness, dizziness, and fatigue which makes user Robaxin ‘high’.

People with a history of narcotics, opioid abuse, and addiction are prone to psychological development to Methocarbamol. Taking more than prescribed is misuse, but diagnosing a substance use disorder requires clinical assessment of a persistent harmful pattern. 

This indicates the possibility of Methacabamol addiction that in some cases leads to Robaxin overdose. Keeping in mind the harms Robaxin use disorder poses to your health, doctors only prescribe the dose that suits the patients’ medical condition and pain level.    

To avoid muscle relaxer Methacarbamol abuse, users must first understand what Robaxin is? 

Note: Robaxin is a central nervous system depressant; its exact mechanism in humans is not established. 

Methocarbamol is a centrally acting muscle relaxant, not an opioid. Similarities in drowsiness or dizziness do not establish the same mechanism or addiction risk. The side effects experienced provide some discomfort, but they resolve mostly on their own when these muscle relaxants start to wear off.

Robaxin tablets should be taken by mouth exactly as prescribed. Feeding-tube administration and injectable methocarbamol are clinician-managed treatments, not methods to try yourself. If more than prescribed has been taken or the medicine has been used by the wrong route, contact a poison service or urgent medical service immediately; call emergency services for breathing difficulty, collapse, a seizure, or inability to awaken. Examples of clinical administration include:

  • For oral administration, tablets are taken by mouth as prescribed. Administration through an NG tube is reserved for clinical care, such as tetanus treatment, under qualified medical supervision.
  • For IV infusion, qualified clinicians use the injectable formulation with appropriate monitoring and may position the patient in a recumbent position. Do not inject tablets or attempt IV administration yourself.

The risk of addiction may be small, but the chances are comparatively high, especially for those with a history of drug abuse. Methocarbamol abuse occurs when the patient experiencing severe pain is encouraged to take more than the required dose to achieve instant results.

Drug addicts can always find new ways to achieve the desired effect; this can include combing the drug with sleeping pills, snorting Robaxin, or taking a handful of these pills with alcohol.

The answer requires context. Methocarbamol is not an opioid, and ordinary pain relief or drowsiness does not establish addiction. Misuse and overdose are still possible and require appropriate assessment.

However, as discussed earlier, there is always a possibility of Robaxin overdose when taken in large amounts, resulting in drowsiness and fatigue.

Read Also: Prescription Drugs Addiction and Side Effects of Abuse

In the United States, methocarbamol is prescription-only; this status does not mean it is an opioid or a scheduled controlled substance.

Doctors are well aware of the risks of overdose and the possible combinations users try, thus prescribing the medication for short-term use only. It is a common occurrence for drug abusers to take Methacarbamol in excessive doses to experience dysphoric effects.

Note: Methocarbamol is prescription-only in the United States but is not scheduled under the Controlled Substances Act.

Initially, the recommended dose of Robaxin is Six grams per day for the first 48 hours to 72 hours of treatment. Doctors reduce the dose as the pain threshold gradually decreases.

Note: Methocarbamol has no direct action on muscle fibers, motor end plates, or nerve fibers; its benefit may relate to central nervous system depression.

The daily dose depends on the severity of the injury ranging from three 500mg tablets four times a day or two 750mg tablets four times daily. Due to the risk of injury in geriatric patients, the use of Robaxin should be avoided. 

The Side Effects of mixing Fluoxetine and Alcohol 

In the United States, Robaxin requires a prescription and must be taken only as directed. However, people using Robaxin tend to forget the health risks associated with Methocarbamol abuse and delve deep into the pits of Robaxin addiction.

As mentioned above, the possibility for Robaxin addiction is relatively low, making it a less likely candidate for drug abuse. However, one should always keep in mind there is a chance of turning the use of Methocarbamol into possible Methocarbamol addiction. 

The likelihood of such occurrence is because people in the quest for immediate results cross the line of well-being, leading to serious consequences. 

Related: Gabapentin Abuse and Side Effects

While patients often report the relief Robaxin provides, there is still a danger of Methocarbamol addiction. 

Note: An estimated 53,000 emergency room visits in 2011 were attributable to Robaxin abuse, while 18 % of these cases were related to the possibility of Methocarbamol addiction caused by alcohol use. 

Methocarbamol abuse occurs when patients feel the prescribed dose is not managing their symptoms effectively, so they tend to self-prescribe a higher than the recommended dose. Taking a higher dose does not guarantee better relief and can cause dangerous adverse effects or overdose. 

A common problem with muscle relaxants is that people often have this misconception that they can go back to their routine by once taking the drug. 

However, patients, especially those on muscle relaxer Methocarbamol ‘high’, should be warned against performing tasks requiring close attention and operating heavy machinery.

Appearance cannot establish or rule out methocarbamol misuse or a substance use disorder. So how to recognize if some have Methocarbamol addiction potential? Well, you can ask them about the effect Robaxin has on them.

‘How Does Robaxin Make You Feel?’

If you ask someone this question, you may get the answer ‘great‘ ‘fantastic‘ ‘superb‘. Feeling better after pain relief is not evidence of addiction. Side effects can occur at prescribed doses and should be discussed with the prescriber. 

From headache to fatigue are some first signs of discomfort that appear when you get used to Robaxin.

However, with Robaxin abuse, people are accustomed to taking drugs that are more than required to feel the desired effect they were craving for hence the feelings of doing superb. These observations cannot confirm a diagnosis; concerns about loss of control or harmful use warrant clinical assessment.

While many people believe that muscle relaxers are harmless, Robaxin has serious side effects and is prone to abuse. Other drugs like heroin and meth do take up the spotlight for drug abuse; it is important to note that the potential of muscle relaxer Methocarbamol abuse is not rare. 

The answer to your question ‘can you abuse Robaxin? is yes, just like any other drug. So how can you identify if someone is abusing Methocarbamol? Well, here are some symptoms that can indicate if someone is on the pathway to Robaxin abuse:

  • Cravings for Robaxin
  • Taking a high dose of Robaxin
  • Recreational use of Methocarbamol without a valid medical reason
  • Symptoms of fraudulently getting a prescription
  • Ignoring duties due to Robaxin addiction such as work, school, or family.
  • Isolation from friends and family
  • Buy multiple prescriptions from a doctor
  • Craving Methocarbamol
  • Thinking you cannot function without Robaxin

Drug testing may help answer a specific clinical question, but it cannot by itself establish how long someone has misused methocarbamol or diagnose addiction.

Robaxin Drug Test

Drug panels differ; detection requires a test designed to measure methocarbamol or its metabolites. Detection time depends on the test and the person, and a urine result does not reliably reveal the dose taken. 

Ask the testing laboratory what its assay can detect and how to interpret the result alongside the clinical history.

Once your body has reached a level where it cannot process the excess amount of Robaxin, it leads to a massive build-up of substance in the body. People don’t realize that this build-up results in dangerous side effects.

Overuse of anything can lead to serious side effects that can change the course of your life forever. People with Robaxin use disorder are well aware of the health risk but ignore the warning signs just because they believe the thrill of muscle relaxer Methocarbamol’ high’ has far more value than life itself. 

Snorting Robaxin and combining Methocarbamol with alcohol are some of the faster ways to achieve the immediate pain-relieving and soothing effects the drug abusers seek. Sadly, drug addicts don’t realize the side effects the misuse of Robaxin can have on their well-being. 

Those side effects include:

  • Blurred vision

People with Robaxin abuse have tightly constricted pupils. This results in pupils not responding to low light, thus impairing vision. Blurred vision is due to constriction of blood vessels that leads to either loss of vision or blurred vision.

  • Memory problems

Drug abuse impacts your ‘prospective memory’ memory that is responsible for reminding you that you need to remember something. Robaxin addiction causes people to think they have forgotten to do something. This memory links the brain’s ability to plan and perform multiple tasks.   

  • Insomnia

Drug addiction and insomnia often co-exist; due to lack of sleep, many people experience emotional and physical problems leading to self-medicating with drugs and alcohol. To ‘enhance’ sleep, people combine the intake of alcohol and drug.  

  • Constipation

Methocarbamol affects your digestive system by limiting bowel movements. Using Robaxin over a prolonged period can result in fewer than three bowel movements a week, leading to difficulty in passing stools.

  • Low Blood pressure

Robaxin addiction impacts your health once your body fails to accommodate the excessive build-up of the drug in the system. This often affects the heart, which has difficulty pumping blood to other parts of the body due to a lack of proper oxygen supply, thus resulting in low blood pressure.

  • Depressed Mood

People who abuse Methocarbamol feel lonely and depressed most of the time. This feeling overtakes when your body is unable to function without the presence of Robaxin, thus making users of methocarbamol realize the calm they felt was solely because of Robaxin.

Severe Side Effect of Robaxin Addiction

Some severe side effects of Robaxin use disorder that can last up to several days or weeks include:

  • Fever

Fever caused by drugs is a symptom of adverse drug reactions. When you take Robaxin beyond the recommended dose, your body experiences hypermetabolism that causes fever. Intake of Methocarbamol can prevent peripheral heat dissipation, increase the metabolic rate or induce a cellular response resulting in tissue damage.

  • Dizziness

When Robaxin is used in an excess amount, it alters the connection between the brain and ear that causes rapid acceleration and deceleration, thus resulting in dizziness.

  • Hallucinations

Hallucinations often occur when you take too much of Robaxin. This can further be precipitated by mixing different substances. People with underlying mental health conditions are prone to having hallucinations when they combine Robaxin with either alcohol or sleeping pills.

Additional side effects in severe cases include persistent vomiting, jaundice, facial swelling, chest pain, irregular heartbeat, and difficulty breathing. In extreme cases, suicidal thoughts can also occur sometimes due to the intake of large doses.

A predictable methocarbamol withdrawal syndrome is not established in the prescribing information. New symptoms after stopping need assessment rather than being automatically labeled withdrawal.

Drowsiness during treatment does not establish addiction, and craving is not an inevitable consequence of stopping.

Related: Clonazepam Addiction and Symptoms of Abuse

Follow the prescribed treatment plan and discuss stopping or persistent pain with the prescriber. Pain may return as symptom relief wears off; this alone does not establish withdrawal or a need for another dose.

There is no universal methocarbamol tapering schedule; the prescriber should advise whether any change is needed for the individual situation. Physical therapy and rest are recommended to prevent the onset of pain or any side effects once the patient is laid off Robaxin.

Robaxin Withdrawal Symptoms

Methocarbamol is not an opioid, and evidence does not establish the routine withdrawal syndrome described here. Doctors, however, are always on the lookout for possible symptoms once there is no use of the drug to manage the pain.

A history of substance use does not by itself establish methocarbamol withdrawal risk. Discuss all medicines and substance use with the prescriber before changing treatment.

The following symptoms are nonspecific and should be medically assessed if they occur; they are not a validated methocarbamol withdrawal checklist:

  • Redness and heat on the skin
  • Poor physical coordination
  • Diarrhea
  • Bradycardia
  • Tachycardia
  • Pain

Stiffness or pain returning as the medicine wears off may reflect the original condition, rather than withdrawal. Rest is often recommended to manage the pain or illness. 

Since Robaxin abuse is less likely to occur, doctors always list down the warning signs of possible overdose when used in excess amounts or combined with sleeping pills, sedatives, or alcohol.

To clear any confusion regarding whether you can overdose on methocarbamol? It is important to keep a lookout for the amount of Methocarbamol used. 

Methocarbamol is recommended in different doses depending on the type of administration. Oral methocarbamol tablets contain 500 mg or 750 mg; the number of tablets and dosing schedule must follow the prescription. Do not increase the dose yourself. If more than the prescribed dose is taken, contact a poison control center or urgent medical service immediately, even without symptoms. Call emergency services for severe drowsiness, collapse, a seizure or breathing difficulty. One of the common ways drug addicts seek to achieve the desired effects is by snorting Robaxin, which can take more than the recommended dose.

This ultimately results in an overdose which in some cases can lead to fatal circumstances.

Signs of Methocarbamol Overdose.

You may not realize when someone is on a direct pathway to muscle relaxer Methocarbamol abuse. Early detection of Robaxin abuse can save the lives of people with Robaxin use disorder. However, overdose symptoms are not well known since the person abusing them appears to be functioning ‘normally’.

Here is a list of signs that can help you warn doctors if someone is on the verge of losing their life.

  • Memory loss
  • Severe Drowsiness
  • Lack of Concentration
  • Weight Loss
  • Decreased Appetite
  • Mood Swings

Although it might be difficult to detect if someone is taking Methocarbamol for recreational purposes, you can always keep a close eye on your loved ones if you see them acting strange. Timely management can result in preventing serious health risks associated with Robaxin abuse.

It is no secret that opioid pain relievers have a high potential for drug abuse, leading to addiction; however, Methocarbamol has a low risk of drug abuse.

Robaxin requires a prescription in the United States because treatment needs clinical assessment; adverse effects can occur even when it is taken as directed. Methocarbamol addiction, as discussed, can have repercussions that affect the life of the one using the drug and those around him.

People with Robaxin use disorder can recover from a prolonged period of drug abuse only if they choose to. There are various treatment options that you can choose if only you are willing to take the first step.

No doubt, the first step is always hard, but with the help of your loved ones, you can always regain control of your life. 

So, seek help to overcome substance abuse and start over with a new sober life.

Questions

Frequently Asked Questions

How long does Methocarbamol stay in your urine? 
There is no universal urine detection window for methocarbamol. Results depend on the assay, dose, timing, and individual factors; the plasma half-life is not a urine-test cutoff.
Blood and hair results also depend on the laboratory method. A test result alone cannot diagnose addiction or reliably reconstruct the dose taken.
Can you overdose on Methocarbamol? 
An overdose on Methocarbamol is possible. Overdose is more likely to occur when Robaxin is used alongside sedatives, tranquilizers, and alcohol. Severe drowsiness may signal toxicity, not proof of addiction. Seek urgent medical help for suspected overdose; call emergency services for breathing difficulty, collapse, a seizure, or inability to awaken.
Can you get high off Methocarbamol 750 mg?
A 750 mg tablet strength does not predict a euphoric effect or establish addiction. Drowsiness and dizziness can occur during prescribed use and are adverse effects, not evidence of a safe recreational dose. 
Taking more methocarbamol than prescribed can cause overdose; do not increase the dose to seek a high. 
Who should not take Methocarbamol?
Pregnant women and people allergic to methocarbamol should avoid taking Robaxin. Except for treating tetanus, Methocarbamol is not approved for use by anyone under 16 years of age. You should always inform your doctor if you have ever had kidney disease, seizures, or myasthenia gravis. 
Can you abuse Robaxin?
Methocarbamol can be misused, including by taking more than prescribed or combining it with other sedatives. Dizziness and drowsiness alone do not diagnose addiction. Loss of control or continued harmful use warrants clinical assessment.

Editorial evidence

Evidence & sources

Selected clinical guidelines, peer-reviewed research, and public-health sources used in this article.

01National Center for Biotechnology Information. (n.d.). Nbk565868.View source
02Substance Abuse and Mental Health Services Administration. (2023). Substance use disorder. U.S. Department of Health and Human Services.View source
03National Health Service. (2024). Alcohol: Advice and risks. National Health Service.View source
View all 12 sourcesShow fewer sources
04StatPearls. (2025). Methocarbamol. StatPearls Publishing.
05Medscape. (2025). Methocarbamol: Drug information. WebMD LLC.View source
06National Institute on Drug Abuse. (2024). Prescription drug misuse and addiction. National Institutes of Health.
07National Library of Medicine. (2024). Methocarbamol. MedlinePlus.View source
08Substance Abuse and Mental Health Services Administration. (2023). National helpline.View source
09U.S. Department of Health and Human Services. (2025). FindTreatment.gov.View source
10MedlinePlus. (2024). Methocarbamol. National Library of Medicine.
11DailyMed. (n.d.). Robaxin (methocarbamol) tablet label information. National Library of Medicine.
12National Institute of Mental Health. (n.d.). Substance Use And Mental Health.View source
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