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Methocarbamol

Brand names: Robaxin

Methocarbamol is a muscle relaxant used for a short time to ease painful muscle spasms.

Brand namesRobaxin
Type of medicineMuscle relaxant
Prescription?Prescription
ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.

Overview

It's used with rest, physical therapy, and other treatments for strains and sprains.

What it's used for

  • Painful muscle spasms from strains and sprains

How to take it

  • Take it with or without food.
  • Use for a short time as prescribed.

Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.

Side effects

Common side effects

  • Sleepiness
  • Dizziness
  • Blurry vision
  • Urine turning brown, black, or green (harmless)
Call 911Swelling of the face, lips, or throat, hives, or trouble breathing
Call your provider todayFainting or very slow heartbeat
Call your provider todayYellow skin or eyes

Warnings

  • Don't drive until you know how it affects you.
  • Older adults are more likely to fall.

Other medicines, foods, and alcohol

  • Alcohol, opioids, and sedating medicines add to drowsiness.

Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.

Pregnancy and breastfeeding

Talk with your provider.

Missed doses, overdose, and storage

If you miss a dose

This medicine is often taken only when needed. If you take it on a schedule, take a missed dose when you remember, unless it's almost time for the next one. Don't double up.

If someone takes too much

Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.

Storing it

Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.

Conditions it's used for

Sources

Last updated 2026-11-13.