muscle relaxant

Muscle Relaxants

Muscle relaxants are medications that reduce muscle spasm and hypertonicity. They are commonly used in the acute management of musculoskeletal pain, particularly when muscle spasm is a significant contributing factor.

How It Works

Centrally acting muscle relaxants (cyclobenzaprine, tizanidine, baclofen, methocarbamol) work in the central nervous system to reduce muscle tone and spasm. They may act on GABA receptors, alpha-2 adrenergic receptors, or inhibit multi-synaptic reflex arcs.

Common Uses

Acute low back pain with muscle spasm
Cervical strain / whiplash
Post-surgical muscle spasm
Muscle spasm secondary to disc herniation
Acute exacerbations of chronic pain conditions
Short-term adjunct to physical therapy

Side Effects

Drowsiness and sedation
Dizziness
Dry mouth
Fatigue
Nausea
Blurred vision
Potential for dependence (with some agents)

Important Precautions

Short-term use recommended (2-3 weeks maximum)
Avoid driving or operating machinery until you know how the medication affects you
Avoid alcohol — enhances sedation
Elderly patients at increased risk of falls
Do not abruptly discontinue after prolonged use
Avoid with other sedating medications
Use with caution in hepatic impairment

⚠️ Important Precautions

This information is for educational purposes only and does not constitute medical advice. Muscle relaxants are prescription medications that require professional evaluation and monitoring. Always consult your healthcare provider.

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