Methocarbamol

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Methocarbamol is a muscle relaxant used to treat skeletal muscle spasms. It is commonly prescribed for short-term relief of discomfort associated with acute, painful musculoskeletal conditions. Methocarbamol is often used in conjunction with rest, physical therapy, and other treatments.

Medical Uses

Methocarbamol is indicated for the relief of discomfort associated with acute, painful musculoskeletal conditions. It is typically used as an adjunct to rest and physical therapy. The exact mechanism of action of methocarbamol is not fully understood, but it is believed to work by depressing the central nervous system, leading to muscle relaxation.

Dosage and Administration

Methocarbamol is available in both oral and injectable forms. The usual adult dosage for oral administration is 1500 mg four times a day. The dosage may be adjusted based on the patient's response and the severity of the condition. For intravenous or intramuscular administration, the typical dose is 1 gram, which may be repeated every 8 hours if necessary.

Side Effects

Common side effects of methocarbamol include drowsiness, dizziness, lightheadedness, and nausea. Less common side effects may include blurred vision, headache, and fever. Serious side effects are rare but can include allergic reactions, seizures, and jaundice.

Contraindications

Methocarbamol is contraindicated in patients with known hypersensitivity to the drug or any of its components. It should be used with caution in patients with a history of seizure disorders, renal impairment, or hepatic impairment.

Drug Interactions

Methocarbamol may interact with other central nervous system depressants, such as alcohol, benzodiazepines, and opioids, potentially enhancing their sedative effects. It may also interact with certain medications used to treat seizures and antidepressants.

Pharmacology

Methocarbamol is a centrally acting muscle relaxant. It is rapidly absorbed after oral administration, with peak plasma concentrations occurring within 1 to 2 hours. The drug is metabolized in the liver and excreted primarily in the urine.

History

Methocarbamol was first approved for medical use in the United States in 1957. It has since become a widely used muscle relaxant for the treatment of musculoskeletal conditions.

See Also

• Muscle relaxant
• Skeletal muscle
• Central nervous system
• Physical therapy