Are Muscle Relaxers Addictive?

Muscle relaxers, a widely used prescription medication for pain relief, have become increasingly popular in recent years. This trend has been especially notable over the past decade. However, many people are questioning the addictive potential of these drugs.

In this article, we will explore the question, “Are muscle relaxers addictive?” and discuss various aspects of muscle relaxers, including over-the-counter options, natural alternatives, and the dangers of combining muscle relaxers with alcohol. Mixing muscle relaxers with over the counter medicines can also increase risks and lead to serious health issues. Improper use of muscle relaxers is called prescription drug misuse, which can result in addiction and other dangerous consequences. We’ll also explore addiction treatment options from the team at South Coast Behavioral Health.

What Are Muscle Relaxers?

Muscle relaxers are medications that help alleviate muscle spasms and pain, often prescribed for conditions such as back pain, neck pain, and muscle injuries. These drugs are often prescribed to manage a specific medical condition, ensuring that symptoms are controlled while minimizing discomfort. They work by blocking the nerve impulses responsible for muscle contractions, providing relief from muscle pain and stiffness.

Some common muscle relaxer brands include:

• Soma (Carisoprodol)

• Flexeril (Cyclobezaprine)

• Robaxin (Methocarbamol)

• Lioresal (Baclofen)

• Zanaflex (Tizanidine)

• Botox (Botulinum toxin)

They also include drugs like benzodiazepines, like Valium (Diazepam).

Muscle relaxer drugs carry with them the potential for dependence, abuse, and addiction. Certain risk factors—such as a personal or family history of substance abuse, mental health disorders, or environmental influences—can increase the likelihood of misuse or addiction to muscle relaxers. For that reason, some of them, like Soma, are categorized as Schedule IV under the Controlled Substances Act. Many benzodiazepines are also Schedule IV substances.

Types and Side Effects of Muscle Relaxers

Muscle relaxers are a class of prescription drugs commonly used to manage muscle spasms, relieve pain, and, in some cases, treat anxiety. These medications work by targeting the central nervous system, helping to reduce involuntary muscle contractions and ease discomfort associated with various medical conditions.

There are two main types of muscle relaxers:

• Antispastic Medications: Drugs like baclofen and tizanidine fall into this category. They are primarily prescribed to address muscle spasms caused by neurological disorders such as multiple sclerosis or spinal cord injuries. By acting on the central nervous system, these medications help control severe muscle tightness and improve mobility.

• Anti-Anxiety (Anxiolytic) Medications: Some muscle relaxers, including diazepam and cyclobenzaprine, are also used to treat anxiety and muscle tension. These drugs can help calm the nervous system, making them useful for individuals experiencing both muscle pain and anxiety symptoms.

While muscle relaxers can be effective for short-term relief, they also come with potential side effects. Common side effects include drowsiness, dizziness, dry mouth, fatigue, and, in some cases, low blood pressure. Because these drugs affect the central nervous system, they may also impair coordination and reaction times, increasing the risk of accidents or falls—especially in older adults.

It’s important to use muscle relaxers only as prescribed by a healthcare provider, as misuse can lead to negative consequences such as drug dependence, withdrawal symptoms, and increased risk of prescription drug abuse. If you experience any concerning side effects or have questions about your prescription medications, consult your healthcare provider for guidance.

What Do Muscle Relaxers Do to the Central Nervous System?

There are two primary categories of muscle relaxers: centrally-acting muscle relaxers and peripherally-acting muscle relaxers.

Centrally-acting muscle relaxers, such as baclofen, cyclobenzaprine, and tizanidine target the central nervous system (CNS). They depress the CNS, inhibiting the transmission of pain signals between the spinal cord and the brain, resulting in a dampened response from the muscles. This reduces muscle contractions and eases tension, providing relief from muscle spasms and pain, and helping to relieve tension.

On the other hand, peripherally acting muscle relaxers target the muscles directly. Perhaps the most well-known peripherally-acting muscle relaxer is Botox. Botox, which is based on the botulinum toxin, functions by blocking the release of acetylcholine, a neurotransmitter responsible for stimulating muscle contractions. This prevents the muscle from receiving signals to contract, resulting in muscle relaxation and relief from pain and stiffness. These medications may also be used for chronic pain. In addition to muscle relaxers, prescription painkillers are another class of medications used to manage pain, though they work differently by targeting the brain’s pain pathways rather than directly affecting muscle contractions.

How Long Do Muscle Relaxers Stay in Your System?

The duration that muscle relaxers stay in your system can vary significantly depending on several factors, such as the specific drug and its dosage, as well as the metabolism, age, weight, and overall health of the user.

Some common muscle relaxers and their approximate half-lives are as follows:

• Soma (Carisoprodol) – Up to 2 hours

• Flexeril (Cyclobezaprine) – 18 hours

• Robaxin (Methocarbamol) – 1 or 2 hours

• Lioresal (Baclofen) – 2 to 6 hours

• Zanaflex (Tizanidine) – 2.5 hours

The length of time muscle relaxers remain in the body can differ across age groups, as metabolism and drug elimination rates change with age. Patterns of drug use, including frequency and dosage, may also influence how quickly these medications are processed and eliminated in different age groups.

Keep in mind that these half-lives are approximate and can vary among individuals. Typically, it takes around 5 half-lives for a drug to be considered eliminated from the body. However, traces of the drug or its metabolites might still be detectable in blood, urine, or hair tests for a longer period.

Are Muscle Relaxers Addictive and What Are the Withdrawal Symptoms?

Like many other drugs, muscle relaxers have a potential for addiction. They can be extremely addictive if misused or taken for extended periods. Although not all muscle relaxers are habit-forming, some have a high potential for abuse due to their sedative and relaxing effects. This is especially the case for benzodiazepines. Prescription drug misuse is defined as taking medication in a way not intended by the prescribing doctor, and muscle relaxers can be involved in misuse prescription behaviors, increasing the risk of addiction and other health issues.

In addition, a tolerance can be built up to muscle relaxers fairly quickly, causing the person to chase after those desired effects via higher and higher doses. Abusing prescription drugs, including muscle relaxers and other prescription drugs, can lead to serious health risks such as overdose, impaired judgment, and dangerous interactions. Long-term use of muscle relaxers can lead to dependence, where the body becomes reliant on the medication to function normally.

When a person stops taking muscle relaxers they may experience withdrawal symptoms. Sedative misuse, which includes the misuse of muscle relaxers, is associated with withdrawal and dependence, especially when these medications are used outside of medical guidance.

Muscle relaxer withdrawal symptoms include:

• Anxiety

• Insomnia

• Restlessness

• Irritability

• Tremors

• Muscle discomfort

• Hot and cold flashes

• Sweating

• Nausea

• Vomiting

• Headaches

• Depression

• Mood swings

• Hallucinations

• Seizures

Long-term misuse of muscle relaxers can increase the risk of developing a substance use disorder or use disorder, which involves problematic patterns of drug use and dependence. Individuals who misuse muscle relaxers alongside opioids are at risk for opioid use disorder and opioid abuse, which can have severe health and social consequences. There has also been an increase in overdose deaths related to prescription drug misuse, including those involving muscle relaxers. Other consequences of muscle relaxer misuse include impaired judgment, risky behaviors, and increased likelihood of accidents. Prescription drug misuse is also linked to mental health and mental health conditions, such as depression or anxiety, which can both contribute to and result from substance misuse. Young adults are particularly at risk for prescription drug misuse and addiction, with higher rates of misuse seen in this demographic. The medical consequences of abusing muscle relaxers and other prescription drugs can include organ damage, cognitive impairment, and life-threatening complications.

It’s essential to follow the prescribed dosage and duration when using muscle relaxers to minimize the risk of addiction.

Is Zanaflex Addictive?

Despite being not currently classified as a controlled substance, tizanidine can be habit-forming. Tizanidine withdrawal symptoms such as tachycardia (fast heartbeat) and spasticity (muscle stiffness) can occur if the medication is not tapered off.

Is Cyclobenzaprine Addictive?

Flexeril can be habit-forming, especially if abused or taken over time. However, compared to other drugs, the addiction potential is relatively low.

Is Robaxin Addictive?

Although animal studies showed low abuse potential of the drug, human studies have indicated methocarbamol can be addictive. 

Mixing Muscle Relaxers and Alcohol

Mixing drugs and alcohol is not smart. Taking muscle relaxers and alcohol together is generally not a good idea, either. Both substances have sedative effects, meaning combining them amplifies the depressant effects of each. This can greatly increase a person’s chances of respiratory depression, unconsciousness, or even death via overdose. Alcohol use is often associated with prescription drug misuse, and problematic alcohol use can increase the risk of addiction.

Taking muscle relaxers with alcohol is an example of what is referred to medically as polysubstance use.

Polysubstance use is the simultaneous use of multiple substances. For most people, this means mixing drugs with alcohol to achieve a greater high, but it can also involve combining muscle relaxers with other prescription drugs. Mixing muscle relaxers with other prescription drugs, in addition to alcohol, can further increase health risks, including dangerous drug interactions and a higher risk of overdose.

The health risks of polysubstance can be significant, including increased potential for addiction, dangerous drug interactions, and overdose.

Polysubstance use also complicates the process of diagnosis and treatment. The combined effects of multiple substances can make it challenging to determine the specific substance responsible for an individual’s symptoms or to develop an appropriate treatment plan.

It is important to follow your healthcare provider’s instructions when taking muscle relaxers and to be mindful of their potential for addiction. If you are concerned about addiction or experiencing symptoms of dependence, reach out to your healthcare provider for support and resources.

Finding Help for Substance Abuse and Prescription Drug Abuse

If you or someone you know is struggling with addiction to muscle relaxers, South Coast Behavioral Health is here to help. Consulting medical professionals is crucial for support and guidance during recovery, as they are trained to assist without judgment. We offer comprehensive care and support to help individuals overcome addiction and regain control of their lives. In addition to muscle relaxers, prescription stimulants—another class of prescription medicines often prescribed for conditions like ADHD and narcolepsy—can also be misused and may require specialized treatment. Safeguarding prescription medicines and raising awareness is important to prevent misuse, especially among teenagers.

We offer medical drug detox programs overseen by addiction specialists trained in helping you detox from muscle relaxer abuse. Once detox is complete, our treatment center offers drug and alcohol treatment programs that include behavioral therapy depending on your needs. This treatment provides a foundation for a brighter future. We also offer sober living options, dual diagnosis, and holistic therapy in our Orange County, CA addiction recovery centers. Sleep disorders, such as insomnia, may also be addressed as part of our comprehensive addiction recovery programs.

These include:

• Residential inpatient rehab and treatment in Costa Mesa, Irvine, and Huntington Beach

• Partial hospitalization in Newport Beach

• Intensive outpatient treatment in Newport Beach

The first step to recovery is admitting the need for help with physical dependence on skeletal muscle relaxants and reaching out to a professional at a treatment facility who can help. We are ready to take your call – day or night – and answer any questions or doubts you may have. Call us at 866-881-1184 to talk to one of our addiction specialists or verify insurance coverage and learn more about paying for muscle relaxer addiction treatment in Irvine, CA and the admissions process. All calls are confidential. You can stop abusing muscle relaxers, our drug addiction programs can help. Research and support from authoritative organizations such as the National Institute on Drug Abuse and other national institutes help inform our evidence-based approach to treatment.