Muscle Relaxers: List of 17 Prescription Medications

First, a quick reality check: “spasm” vs. “spasticity”

People often say “muscle spasm” when they mean anything from a sore neck to a cramp to a tight back. In medicine, two buckets matter:

• Muscle spasm (acute musculoskeletal spasm): a sudden, painful tighteningoften from strain, sprain, overuse, or
  protective guarding after injury (hello, weekend-warrior back pain).
• Spasticity (neurologic muscle tightness): ongoing stiffness and increased tone caused by brain/spinal cord conditions
  (for example, multiple sclerosis, spinal cord injury, cerebral palsy, stroke).

Why does this matter? Because the “right” medication depends on which bucket you’re in. Some meds are used for short-term spasms,
while others are designed for long-term neurologic spasticity management under close supervision.

When do doctors actually use muscle relaxers?

For acute back or neck pain, many guidelines and reviews note that skeletal muscle relaxants can offer
short-term symptom reliefoften when first-line options like rest, activity modification, physical therapy strategies,
acetaminophen, or NSAIDs aren’t enough or aren’t tolerated. Translation: they’re usually a “supporting actor,” not the star.

For spasticity, treatment is often broader: physical therapy, stretching, mobility aids, targeted injections, and
medications that reduce abnormal tone. Here, muscle relaxers may be part of a longer-term plan, but the trade-off is side effects
(especially sedation and dizziness).

How clinicians choose a muscle relaxer (the non-mysterious version)

Despite what pharmacy commercials may imply, picking a muscle relaxer isn’t like choosing a smoothie flavor. Clinicians weigh:

• The goal: short-term spasm relief vs. ongoing spasticity control.
• Daytime function: if you need to drive, work, study, or parentsedation matters.
• Other medications: mixing CNS depressants (opioids, sleep meds, alcohol) can be risky.
• Age and fall risk: some muscle relaxers can increase confusion and falls, especially in older adults.
• Medical history: liver issues, glaucoma/urinary retention risk, breathing problems, substance-use risk, etc.
• Duration: many antispasmodics are intended for brief courses; spasticity meds may be longer-term with monitoring.

The “best” medication is often the one that provides enough relief to let you move, stretch, and recoverwithout turning you into
a drowsy housecat who forgot where they parked.

Muscle Relaxers: List of 17 Prescription Medications

Below are 17 prescription medications that may be used for muscle spasms or spasticity in the U.S. Some are FDA-approved for
specific muscle-related uses; others are sometimes used off-label (and that’s clearly labeled).

A) Antispasmodics for acute musculoskeletal muscle spasm (typically short-term)

1. Cyclobenzaprine

   One of the most studied options for short-term relief of acute muscle spasm (often neck/back). Common downside: sleepiness,
   dry mouth, and “I feel like I took a nap inside my skull.”

   Safety note: can interact with other medications that affect serotonin and may not be ideal for certain patients (for example,
   some older adults or those sensitive to anticholinergic effects).

2. Methocarbamol

   Often used for acute muscle spasm and pain related to strains/sprains. Tends to cause drowsiness and dizziness in some people.
   Clinically, it’s commonly chosen when a clinician wants a traditional antispasmodic without leaning too heavily on stronger,
   dependency-prone options.

3. Metaxalone

   Another option for acute musculoskeletal spasm. It’s sometimes described as “a bit less sedating” by some patients, but that’s not
   a universal experience. It can still impair alertnessyour body did not sign a contract guaranteeing you’ll stay awake.

4. Carisoprodol

   Used for short-term muscle spasm relief, but it carries a higher concern for misuse and dependence compared with many other
   antispasmodics. It’s one clinicians often try to avoid unless there’s a strong reason and careful oversight.

5. Chlorzoxazone

   Used for acute muscle spasm (often in back/neck pain scenarios). Sedation can occur. Another practical consideration: it may be
   less commonly prescribed in some regions, so availability and clinician familiarity vary.

6. Orphenadrine (extended-release)

   Used for muscle spasm and pain; can cause anticholinergic side effects (dry mouth, constipation, urinary retention) and sedation.
   Often avoided in people prone to urinary issues or certain eye conditions.

7. Carisoprodol / aspirin

   A combination product used for musculoskeletal pain with spasm features. Because it includes aspirin, clinicians consider GI risk,
   bleeding risk, and other medication interactionson top of the carisoprodol dependence concern.

8. Carisoprodol / aspirin / codeine

   Combination product that adds an opioid (codeine). This raises the stakes: increased sedation, respiratory depression risk,
   constipation, and higher misuse potential. In many cases, clinicians prefer safer alternatives first.

B) Antispastics for neurologic spasticity (often longer-term, with monitoring)

9. Tizanidine

   Used for spasticity and sometimes for spasm-related pain. It can cause drowsiness and low blood pressure (especially when standing),
   so dose timing and slow titration matter. Some people notice dry mouth and fatigue.

10. Baclofen

    A mainstay for spasticity related to neurologic conditions. It can reduce muscle tightness and spasms, but may cause weakness,
    sleepiness, and dizziness. Stopping abruptly can be dangeroustapering is important when discontinuing.

11. Dantrolene

    Works more directly on skeletal muscle contraction mechanisms (rather than primarily through the brain/spinal cord). Used for
    spasticity in certain neurologic scenarios. Key practical point: clinicians are cautious because of potential liver-related risks,
    so monitoring may be part of the plan.

12. Diazepam

    A benzodiazepine that can reduce muscle spasm and spasticity, but it’s also sedating and can be habit-forming. It’s typically not a
    first choice for routine back/neck pain, but it may appear in specific spasticity or acute spasm contexts with careful oversight.

C) “Sometimes used” options (off-label or adjunctsdiscuss risks carefully)

The medications below are not classic “skeletal muscle relaxants,” but they may be used in certain cases to reduce spasticity symptoms,
anxiety-driven muscle tension, or nerve-related discomfort. They also come with meaningful downsides (sedation, dependence risk, cognitive
effects), so they’re typically considered only after discussing benefits vs. risks.

13. Clonazepam (benzodiazepine; sometimes used off-label)

    Can reduce muscle tightness in some neurologic contexts, but sedation and dependence risk are major limitations. Not a go-to for
    everyday back strain.

14. Lorazepam (benzodiazepine; sometimes used off-label)

    Similar considerations: may relax muscles indirectly via CNS calming effects. Risks include drowsiness, impaired coordination, and
    habit formationespecially with longer use.

15. Alprazolam (benzodiazepine; sometimes used off-label)

    Primarily an anti-anxiety medication. While it may relax muscles indirectly in some situations, it’s generally not preferred for
    muscle pain/spasm due to dependence potential and short-acting rebound effects in some patients.

16. Gabapentin (anticonvulsant; sometimes used off-label for spasticity-related symptoms)

    Not a direct muscle relaxer, but may help with nerve-related pain and may reduce certain spasticity-associated discomfort in some
    treatment plans. Common side effects include drowsiness and dizziness.

D) Targeted option for focal spasticity

17. OnabotulinumtoxinA (injection; used for specific muscle groups)

    A targeted approach for focal spasticity affecting certain muscles. Rather than “blanketing” your whole nervous system with sedation,
    injections can weaken overactive muscles locally, often paired with therapy and stretching to improve function.

Common side effects (and how to lower your odds of regretting Tuesday)

Across many muscle relaxers, the most common issues are drowsiness, dizziness, and fatigue. Some also cause dry mouth,
nausea, or low blood pressure. This is why clinicians often suggest taking the first dose when you’re home and don’t need to drive.

Practical safety tips

• Assume you may be sleepy. Test your response before driving or operating machinery.
• Avoid alcohol and be cautious with other CNS depressants (opioids, sleep meds, certain anxiety meds).
• Plan for falls: stand up slowly, especially with tizanidine or anything that can lower blood pressure.
• Don’t stop abruptly if you’ve been on a medication for a whileespecially baclofen or benzodiazepines.
• Use the window of relief wisely: gentle mobility, stretching, and physical therapy strategies often provide the long-term payoff.

The goal isn’t to “knock you out.” It’s to reduce pain and tightness enough that you can move, sleep, and participate in recovery.

FAQ

Are muscle relaxers narcotics?

Most are not opioids. However, some have misuse potential (for example, carisoprodol and benzodiazepines), and combination products may
include opioids (like codeine). “Not a narcotic” does not mean “risk-free.”

How long can you take a muscle relaxer?

For acute musculoskeletal spasm, many clinicians use antispasmodics short-term (often days to a couple of weeks). For spasticity, some
medications may be used longer with careful monitoring and a broader treatment plan.

Is there an over-the-counter muscle relaxer in the U.S.?

There aren’t OTC medications officially classified as muscle relaxers in the U.S. People often use OTC pain relievers (like NSAIDs or
acetaminophen) for sore muscles, but those aren’t muscle relaxants.

What should I tell my prescriber before starting one?

Share your full medication list (including supplements), alcohol use, any history of falls, liver/kidney issues, and whether your job
requires driving or operating machinery. This helps match the option to your real lifenot a theoretical patient who never leaves the couch.

Conclusion

“Muscle relaxers” is a broad category that includes medications for short-term muscle spasms and medications for
neurologic spasticity. There isn’t one perfect choiceclinicians balance relief with side effects, safety risks,
and how the medication fits your daily routine.

If you’re dealing with new, severe, or worsening symptomsor if you’re relying on muscle relaxers just to get through normal lifetalk to
a healthcare professional. The best outcome is usually a combination of targeted medication use and a plan that restores movement and function.

Experiences people commonly report (and what they wish they knew earlier)

Let’s talk about the part that doesn’t always show up in the “clinical summary” box: what it feels like to take a muscle relaxer.
Not medical advicejust patterns people often describe when they start these medications as prescribed.

1) The first-dose surprise. A lot of people expect pain relief to feel like a switch flipping from “ouch” to “fixed.”
What they often notice first is sleepiness. Sometimes the muscle relaxer doesn’t feel like it’s “working” until you realize you’re
no longer bracing every movement like you’re walking on ice. This is why clinicians often recommend trying the first dose when you’re home.

2) The “I can finally move” momentfollowed by the “why am I so groggy?” moment. With acute neck or back spasm,
relief can show up as improved range of motion: turning your head becomes possible again, rolling out of bed feels less dramatic,
or you can sit without your lower back doing a protest march. The trade-off is that some people feel foggy, especially with daytime dosing.
A common strategy clinicians use is timing doses toward evening (when appropriate) so sleepiness is less disruptive.

3) Dry mouth, dizziness, and the art of standing up like a calm adult. Dry mouth is a frequent complaint with certain
medications; dizziness can happen, tooespecially if blood pressure drops when you stand. People often learn quickly to hydrate, rise slowly,
and avoid sudden “pop up and sprint” moves. Your future self will thank you for pretending you’re a careful penguin for a few days.

4) The medication isn’t the whole plan. Many patients say the best results happen when they use the relief window to do
the boring-but-effective stuff: gentle walking, stretching, posture tweaks, heat/ice, and physical therapy exercises. In other words,
the medication can create enough comfort to move againmovement helps prevent the spasm from becoming your new personality.

5) The “I didn’t realize stopping suddenly could be a problem” lesson. For certain medicationsespecially baclofen and
benzodiazepinespeople sometimes discover (the hard way) that stopping abruptly can cause rebound symptoms or withdrawal effects. The helpful
takeaway is simple: if you’ve been taking a muscle relaxer regularly, ask your prescriber about tapering instead of quitting cold turkey.

6) Conversations that change outcomes. Patients often say the most useful appointment moment is when they describe
function, not just pain: “I can’t drive safely,” “I’m too drowsy to work,” “I’m waking up stiff at 3 a.m.,” or
“my leg tightness is making walking harder.” That kind of detail helps clinicians adjust timing, switch medications, or add targeted
therapy (including focal injection options for spasticity) rather than just increasing doses.

Bottom line: muscle relaxers can be genuinely helpfulespecially when pain and tightness are blocking sleep and movementbut the best
experiences tend to come from short, thoughtful use, careful attention to sedation, and pairing medication with
a recovery plan that builds strength and mobility over time.