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Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

Robaxisal Patient Information Including Side Effects

Brand Names: Robaxisal

Generic Name: aspirin and methocarbamol (Pronunciation: AS pir in/ meth oh KAR ba mall)

What is aspirin and methocarbamol (Robaxisal)?

Aspirin is in a class of drugs called salicylates. Aspirin works by reducing substances in the body that cause pain and inflammation. It is used to reduce pain, inflammation and fever.

Methocarbamol is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to the brain.

Aspirin and methocarbamol are used together, along with rest and physical therapy, to treat injuries and other painful muscular conditions.

Aspirin and methocarbamol may also be used for purposes other than those listed in this medication guide.

What are the possible side effects of aspirin and methocarbamol (Robaxisal)?

If you experience any of the following serious side effects, stop taking aspirin and methocarbamol and seek emergency medical attention or contact your doctor immediately:

  • an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives);
  • red, black, or bloody stools;
  • bloody vomit;
  • rash or itching;
  • fever; or
  • nasal congestion.

Other, less serious side effects may be more likely to occur. Continue to take aspirin and methocarbamol and talk to your doctor if you experience

  • drowsiness, dizziness, lightheadedness or fainting;
  • headache or blurred vision;
  • nausea, diarrhea, or a metallic taste in the mouth;
  • brown, black, or green urine (this is not harmful); or
  • faint ringing in the ears.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Read the Robaxisal (methocarbamol and aspirin) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about aspirin and methocarbamol (Robaxisal)?

Use caution when driving, operating machinery, or performing other hazardous activities. Aspirin and methocarbamol may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while taking aspirin and methocarbamol. Also, in combination with aspirin, alcohol can be damaging to the stomach.

Call your doctor immediately if you experience a rash, itching, a fever, or nasal congestion during treatment with aspirin and methocarbamol.

Watch for bloody, black, or tarry stools or bloody vomit. This could indicate damage to the stomach.

Do not take more of this medication than is prescribed. If the pain is not being adequately treated, talk to your doctor.

Side Effects Centers

Robaxisal - User Reviews

Robaxisal User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Robaxisal sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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