Yes, you can become addicted to muscle relaxers. These medications work by depressing your central nervous system, and with regular use, your brain can adapt to their presence, leading to physical dependence and, in some cases, full addiction. The risk varies significantly depending on which muscle relaxer you’re taking, how long you’ve been on it, and whether you’re combining it with other substances. Most prescribing guidelines limit muscle relaxer use to two to three weeks specifically because dependence can develop beyond that window.
How Muscle Relaxers Create Dependence
Centrally acting muscle relaxers don’t work directly on your muscles. They slow down nerve signaling in your brain and spinal cord, which reduces the sensation of muscle spasms and pain. This central nervous system depression is what makes them effective, but it’s also what gives them abuse potential. The same calming, sedating effect that relieves spasms can produce feelings of relaxation or mild euphoria, especially at higher doses.
Over time, your brain adjusts to this suppressed state of activity. It compensates by becoming more excitable on its own, which means you need higher doses to get the same relief. This is tolerance. Once tolerance develops, stopping the drug abruptly leaves your nervous system in an overexcited state with nothing to counterbalance it, producing withdrawal symptoms. That cycle of tolerance, escalating doses, and withdrawal is the core of physical dependence.
Which Muscle Relaxers Carry the Highest Risk
Not all muscle relaxers are equally addictive. Carisoprodol (sold as Soma) stands out as the most concerning. Your liver breaks carisoprodol down into a substance called meprobamate, which has abuse potential similar to that of benzodiazepines like Valium or Xanax. In 2011, the DEA classified carisoprodol as a Schedule IV controlled substance because of mounting evidence of abuse and a clear withdrawal syndrome when people stop taking it abruptly. The withdrawal symptoms closely mirror those of meprobamate withdrawal, which tells researchers that the real dependence is forming around what the drug turns into inside your body, not just the drug itself.
Baclofen, commonly prescribed for spasticity in conditions like multiple sclerosis, also carries significant dependence risk. Withdrawal from baclofen can be severe, with symptoms including anxiety, hallucinations, tremors, seizures, fever, and dangerous spikes or drops in blood pressure. In extreme cases, particularly for patients receiving the drug through a pump implanted in the spine, untreated withdrawal can progress to organ failure and death within one to three days. Even patients taking oral baclofen can experience altered mental status, worsening spasticity, and autonomic instability if they stop too quickly.
Cyclobenzaprine (Flexeril) is not a federally controlled substance and is generally considered lower risk, but it still has documented cases of misuse, particularly among people seeking its sedating effects. The fact that a muscle relaxer isn’t scheduled doesn’t mean it’s completely safe to use long-term or at higher-than-prescribed doses.
Warning Signs of Misuse
Muscle relaxer addiction often develops gradually, sometimes without the person realizing it. Common red flags include needing a higher dose than originally prescribed to get the same relief, feeling anxious or physically uncomfortable as a dose wears off, and continuing to take the medication after the original pain or spasm has resolved. Some people begin taking extra doses for the sedating or calming effect rather than for muscle pain.
Other patterns to watch for: running out of prescriptions early, seeking prescriptions from multiple doctors, or combining muscle relaxers with alcohol or other sedatives to intensify the effect. Research consistently shows that muscle relaxers are more often abused alongside other substances than as a primary drug of choice. The combination-seeking behavior is itself a warning sign.
The Danger of Mixing With Other Substances
Combining muscle relaxers with opioids, benzodiazepines, or alcohol is one of the most dangerous patterns associated with these drugs. All of these substances depress the central nervous system, and stacking them multiplies the effect. The result can be profound sedation, severely slowed breathing, coma, or death.
An FDA analysis found that muscle relaxers were contributory to death in many cases where opioid painkillers were also involved. Alcohol appeared in roughly one in five opioid-related emergency department visits and over 22% of opioid-related deaths. Because muscle relaxers share the same basic mechanism of slowing brain activity, mixing them with any of these substances creates similar risks. Even one drink while taking a muscle relaxer can amplify drowsiness and impair breathing more than either substance would alone.
Elderly patients face particular vulnerability. A large study of over 1.8 million patients found that those prescribed muscle relaxers had more than double the risk of emergency department visits (with an adjusted odds ratio of 2.25) and a 56% higher risk of hospitalization compared to matched patients not taking them. Falls and fractures were a major driver of those numbers, since the sedation and impaired coordination from muscle relaxers hit older adults harder.
What Withdrawal Feels Like
Withdrawal symptoms typically begin within hours to days after your last dose, often coinciding with when you would have taken your next pill. The specific symptoms depend on which muscle relaxer you’ve been taking and for how long, but common experiences include anxiety, insomnia, tremors, nausea, and a rebound increase in the muscle spasms or pain the drug was originally treating.
For carisoprodol, withdrawal closely resembles benzodiazepine withdrawal: agitation, insomnia, tremors, and in severe cases, seizures. Baclofen withdrawal can be particularly intense, starting with itching, tingling sensations, and returning spasticity, then potentially escalating to hallucinations, delirium, and seizures if untreated. These are not minor discomforts. Abruptly stopping a muscle relaxer after weeks or months of regular use can be medically dangerous, which is why tapering under supervision is the standard approach.
Safer Approaches to Muscle Pain
The two-to-three-week recommended limit on muscle relaxer prescriptions exists because there’s little evidence they remain effective beyond that point, and the risk of dependence climbs with continued use. If your muscle pain persists beyond a few weeks, the underlying cause likely needs a different approach rather than an ongoing prescription.
Physical therapy addresses the mechanical source of spasms and builds strength to prevent recurrence. Deep tissue massage can relieve acute muscle tension without any dependence risk. Some people find relief from anti-inflammatory foods and supplements: tart cherry juice, curcumin (the active compound in turmeric), and magnesium have shown benefit for muscle recovery and contraction. Topical options like capsaicin cream, which uses the active ingredient in chili peppers to override pain signals, can help with localized muscle pain.
If you’ve been taking a muscle relaxer for longer than a few weeks and are concerned about dependence, the most important step is to not stop abruptly. A gradual dose reduction allows your nervous system to readjust without the dangerous rebound effects that come with sudden cessation.