Some muscle relaxers are addictive, and some carry very little risk. Carisoprodol (Soma) is the most addictive muscle relaxer, which is why it is a federally controlled substance. Diazepam (Valium), a benzodiazepine sometimes prescribed for muscle spasms, also causes dependence. Common options like cyclobenzaprine, methocarbamol, and tizanidine have lower addiction potential, but they can still be misused for their sedating effects, especially with alcohol or opioids. The risk also rises the longer they are taken.
Key Takeaways
- Carisoprodol (Soma) has the highest addiction risk of any muscle relaxer and is a Schedule IV controlled substance.
- Diazepam (Valium) is a benzodiazepine, not a true muscle relaxer, and can cause physical dependence quickly.
- Cyclobenzaprine, methocarbamol, metaxalone, and tizanidine have lower addiction potential, but misuse still happens.
- Mixing muscle relaxers with opioids, benzodiazepines, or alcohol greatly raises the risk of overdose.
- Muscle relaxers are meant for short-term use, usually two to three weeks.
What Are Muscle Relaxers?
Muscle relaxers are prescription medications used to relieve muscle spasms and spasticity. Doctors usually prescribe them for short-term back or neck pain, injuries, or conditions like multiple sclerosis and spinal cord injury.
There are two main groups:
- Antispasmodics treat muscle spasms from injuries or strain. Examples include cyclobenzaprine, carisoprodol, methocarbamol, and metaxalone.
- Antispastics treat ongoing muscle stiffness from nerve conditions. Examples include baclofen and dantrolene. Tizanidine is used for both.
Most muscle relaxers work through the central nervous system, which is why drowsiness is the most common side effect. In the US, they all require a prescription.
Are Muscle Relaxers Addictive?
Muscle relaxers can be addictive, but the risk depends heavily on which one you take. The biggest concern is carisoprodol. The body converts it into meprobamate, an older anti-anxiety drug with sedative effects similar to barbiturates. That is why carisoprodol is a Schedule IV controlled substance and why its misuse is well documented.
Other muscle relaxers are not federally controlled, but people do misuse them to feel calm, sleepy, or to boost the effects of other drugs. Over time, regular use can lead to tolerance and physical dependence, especially when people take more than prescribed or use them for months instead of weeks.
Which Muscle Relaxers Are Most Addictive?
| Medication | Brand Name | Addiction Risk |
|---|---|---|
| Carisoprodol | Soma | High, Schedule IV controlled |
| Diazepam | Valium | High, Schedule IV benzodiazepine |
| Baclofen | Lioresal | Low for addiction, but dangerous withdrawal if stopped suddenly |
| Cyclobenzaprine | Flexeril, Amrix | Low, but misused for sedation |
| Tizanidine | Zanaflex | Low, but rebound symptoms if stopped suddenly |
| Methocarbamol | Robaxin | Low |
| Metaxalone | Skelaxin | Low |
Low risk does not mean no risk. Any sedating medication can be misused, especially by someone with a history of substance use.
Why Do People Misuse Muscle Relaxers?
People misuse muscle relaxers mainly because many of them slow down the central nervous system. At higher doses, this can create a heavy, calm, floating feeling and relief from stress as well as muscle pain.
Carisoprodol produces the strongest effect because of meprobamate, which reduces anxiety and causes sedation. Some people chase this feeling by taking more than prescribed or by combining muscle relaxers with opioids or alcohol to intensify the high. That pattern is where dependence often begins.
Why Is Mixing Muscle Relaxers With Other Drugs Dangerous?
Mixing muscle relaxers with other depressants is dangerous because the effects stack. Together they can slow breathing to a life-threatening level.
- Opioids: Combining carisoprodol or other muscle relaxers with painkillers like oxycodone or hydrocodone sharply raises overdose risk.
- Benzodiazepines: Xanax, Valium, and similar drugs add more sedation and breathing suppression.
- Alcohol: Even a few drinks can cause extreme drowsiness, blackouts, and dangerous breathing problems.
The combination of an opioid, a benzodiazepine, and carisoprodol has been linked to many overdose deaths. If you have been prescribed more than one of these, talk to your doctor about the risks.
What Are the Signs of Muscle Relaxer Addiction?
Signs of muscle relaxer addiction include:
- Taking more pills or taking them more often than prescribed
- Using them after the injury or pain has healed
- Running out of a prescription early
- Seeing several doctors to get more prescriptions
- Mixing them with alcohol, opioids, or other drugs
- Feeling anxious, restless, or unable to sleep without them
- Hiding pill use from family or friends
These patterns match the broader signs of prescription drug addiction, which look much the same whether the drug is a muscle relaxer, a painkiller, or a sedative.
What Happens If You Stop Taking Muscle Relaxers Suddenly?
Stopping some muscle relaxers suddenly can cause withdrawal, and a few can be dangerous to quit abruptly.
- Carisoprodol: anxiety, insomnia, tremors, muscle twitching, and in heavy users, hallucinations or seizures
- Baclofen: agitation, confusion, hallucinations, high fever, and seizures, especially after long-term or high-dose use
- Tizanidine: rebound high blood pressure, fast heart rate, and increased muscle stiffness
- Cyclobenzaprine: nausea, headache, and feeling unwell after long-term use
If you have taken a muscle relaxer daily for weeks or months, work with a doctor to taper the dose rather than stopping on your own.
How Is Muscle Relaxer Addiction Treated?
Treatment for muscle relaxer addiction starts with a safe, supervised taper to manage withdrawal. From there, therapy helps you understand why you started relying on the medication and how to manage pain, stress, or sleep without it.
Cognitive behavioral therapy, group therapy, and relapse prevention are core parts of care. If chronic pain is part of the picture, a good program helps you build a pain plan that does not depend on sedating drugs. Many people recover in an intensive outpatient program while keeping up with work and family.
Conclusion
Muscle relaxers can be addictive, and the risk is highest with carisoprodol and with diazepam. Most other muscle relaxers carry a lower risk, but misuse still happens, especially when they are taken long-term or mixed with alcohol, opioids, or benzodiazepines. If you find yourself needing them to relax, sleep, or get through the day after your injury has healed, talk to your doctor or a treatment provider. Prescription drug dependence is treatable, and withdrawal is easier to manage with medical support.
Get Prescription Drug Addiction Treatment in New Jersey
If a prescription that started as pain relief has become something you cannot stop, help is available. At The Hope Institute in West Milford, NJ, our team offers outpatient prescription drug addiction treatment in New Jersey, including a safe taper and therapy. Call +1 (855) 659-2310 today to speak with our admissions team.
Frequently Asked Questions
Is It Okay to Take a Muscle Relaxant Every Day?
Taking a muscle relaxant every day is fine for a short time if your doctor prescribed it that way. Most are meant for two to three weeks. Daily use for months raises the risk of tolerance, side effects, and dependence, so check with your doctor if you still need it after a few weeks.
What Is the Most Addictive Muscle Relaxer?
Carisoprodol, sold as Soma, is the most addictive muscle relaxer. It turns into meprobamate in the body, a sedative with real abuse potential, and it is a federally controlled Schedule IV drug.
What Muscle Relaxers Are Not Addictive?
Methocarbamol, metaxalone, cyclobenzaprine, and tizanidine have low addiction potential and are not federally controlled. That does not make them risk-free. They can still be misused for sedation, and some cause withdrawal if stopped suddenly after long-term use.
Are Muscle Relaxers a Narcotic?
No, muscle relaxers are not narcotics. Narcotics usually refers to opioids like oxycodone and hydrocodone. Some muscle relaxers, like carisoprodol, are still controlled substances because of their abuse potential.
Do Muscle Relaxers Make You High?
Muscle relaxers can produce a sedated, relaxed high, especially carisoprodol or any muscle relaxer taken in large doses. Taking them to get high or mixing them with alcohol or opioids is dangerous and can lead to overdose.
