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Robaxin Prescription
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Generic Name: methocarbamol (meth oh KAR ba mal)
Brand Names: Robaxin, Robaxin-750
Robaxin (methocarbamol) is used to treat skeletal muscle conditions such as pain or injury. Includes Robaxin side effects, interactions and indications. Average Savings for methocarbamol (generic): 22.9%
Generic Name: methocarbamol (meth oh KAR ba mal)
Brand Names: Robaxin, Robaxin-750
Robaxin (methocarbamol) is used to treat skeletal muscle conditions such as pain or injury. Includes Robaxin side effects, interactions and indications. Average Savings for methocarbamol (generic): 22.9%
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30 tablets of Robaxin 40 mg
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Robaxin Drug Information:

Robaxin (Methocarbamol) is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain. Robaxin is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury. Robaxin may also be used for purposes not listed in this medication guide. You should not use Robaxin if you are allergic to Methocarbamol. Before using Robaxin, tell your doctor if you have have been diagnosed with; epilepsy or other seizure disorders; Learn more

Robaxin Side Effects

Note: This document contains side effect information about methocarbamol. Some of the dosage forms listed on this page may not apply to the brand name Robaxin.

For the Consumer

Applies to methocarbamol: oral tablet

Other dosage forms:

  • injection solution

Along with its needed effects, methocarbamol (the active ingredient contained in Robaxin) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking methocarbamol:

Incidence not known

  • Black, tarry stools
  • changes in skin color
  • chest pain or discomfort
  • chills
  • clay-colored stools
  • cough
  • dark urine
  • diarrhea
  • difficulty in swallowing
  • dizziness
  • fast heartbeat
  • feeling of warmth
  • fever
  • headache
  • joint or muscle pain
  • large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
  • lightheadedness, dizziness, or fainting
  • loss of appetite
  • loss of bladder control
  • loss or problems with memory
  • nausea
  • numbness or tingling of face, hands, or feet
  • pain, tenderness, or swelling of foot or leg
  • painful or difficult urination
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • redness and soreness of the eyes
  • redness of the face, neck, arms, and occasionally, upper chest
  • skin rash
  • sleepiness
  • slow or irregular heartbeat
  • sore throat
  • sores, ulcers, or white spots on the lips or in the mouth
  • stomach pain
  • sweating
  • swollen glands
  • tightness in the chest
  • total body jerking
  • unpleasant breath odor
  • unusual bleeding or bruising
  • unusual tiredness or weakness
  • vomiting of blood
  • yellow eyes or skin

Get emergency help immediately if any of the following symptoms of overdose occur while taking methocarbamol:

Symptoms of Overdose

  • Loss of consciousness
  • shaking or jerking of one area or side of the body

Some side effects of methocarbamol may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known

  • Belching
  • double vision
  • drowsiness
  • feeling of constant movement of self or surroundings
  • heartburn
  • indigestion
  • mood or mental changes
  • sensation of spinning
  • stomach discomfort, upset, or pain
  • trouble sleeping
  • uncontrolled eye movements

For Healthcare Professionals

Applies to methocarbamol: injectable solution, oral tablet


The most commonly reported adverse reaction is headache.


Some cardiovascular events may have been due to an overly rapid IV injection.

Most syncope cases resulted in spontaneous recovery; however, epinephrine, injectable steroids, and/or injectable antihistamines have been used in some cases.

Frequency not reported: Syncope, hypotension, bradycardia, thrombophlebitis


Frequency not reported: Anaphylaxis

Nervous system

Convulsions have been reported with IV administration in patients with seizure disorders.

Frequency not reported: Dizziness, lightheadedness, headache, drowsiness, mild muscular incoordination, metallic taste, nystagmus, sedation, seizures (including grand mal), tremor


Frequency not reported: Amnesia, confusion, insomnia, restlessness, anxiety


Frequency not reported: Pain and sloughing at the injection site


Frequency not reported: Urticaria, pruritus, rash, angioneurotic edema


Frequency not reported: Dyspepsia, nausea, vomiting, anorexia


Frequency not reported: Vertigo, fever


Frequency not reported: Blurred vision, conjunctivitis, diplopia


Frequency not reported: Leukopenia


Frequency not reported: Jaundice (including cholestatic jaundice)


Frequency not reported: Nasal congestion, bronchospasm

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/3/2022.

Source: Drugs.com Robaxin (www.drugs.com/robaxin.html).