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Does Robaxin (methocarbamol) cause side effects?
The exact mechanism of how Robaxin works is not known. Robaxin is presumed to work by depressing the central nervous system, leading to relaxation of muscles.
Common side effects of Robaxin include
Serious side effects of Robaxin include
- flu symptoms,
- lowered heart rate,
- seizures (convulsions), and
- yellowing of skin or eyes (jaundice).
Drug interactions of Robaxin include narcotic painkillers, alcohol, sedative or hypnotic medications, and other medications that depress the central nervous system, because the combination can increase sedation, as well as cause loss of consciousness, troubled breathing, lowered heart rate, and in severe cases, death or coma.
There are no adequate studies of Robaxin to determine safe and effective use in pregnant women. Robaxin should be avoided in pregnant mothers to avoid any risk to a fetus.
Robaxin (methocarbamol) side effects list for healthcare professionals
The following adverse reactions have been reported coincident with the administration of methocarbamol. Some events may have been due to an overly rapid rate of intravenous injection.
In most cases of syncope there was spontaneous recovery. In others, epinephrine, injectable steroids, and/or injectable antihistamines were employed to hasten recovery.
Hemic and lymphatic system: Leukopenia
Immune system: Hypersensitivity reactions
The onset of convulsive seizures during intravenous administration of methocarbamol has been reported in patients with seizure disorders. The psychic trauma of the procedure may have been a contributing factor. Although several observers have reported success in terminating epileptiform seizures with Robaxin Injectable, its administration to patients with epilepsy is not recommended.
Other: Pain and sloughing at the site of injection
What drugs interact with Robaxin (methocarbamol)?
See prescription labeling for interaction with CNS drugs and alcohol.
Drug/Laboratory Test Interactions
Methocarbamol may cause a color interference in certain screening tests for 5hydroxyindoleacetic acid (5-HIAA) using nitrosonaphthol reagent and in screening tests for urinary vanillylmandelic acid (VMA) using the Gitlow method.
Robaxin (methocarbamol) is a skeletal muscle relaxant with sedative effects used to relieve discomfort associated with painful skeletal muscle spasms. Robaxin is also used to relieve tetanus spasms. Common side effects of Robaxin include drowsiness, dizziness, confusion, headache, flushing, nausea, and vomiting. There are no adequate studies of Robaxin to determine safe and effective use in pregnant women. Robaxin should be avoided in pregnant mothers to avoid any risk to a fetus. It is unknown if Robaxin enters breast milk.
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Related Disease Conditions
Second Source article from Government
Muscle Pain (Myofascial Pain Syndrome)
Muscle spasms are involuntary muscle contractions that come on suddenly and are usually quite painful. Dehydration, doing strenuous exercise in a hot environment, prolonged muscle use, and certain diseases of the nervous system may cause muscle spasms. Symptoms and signs of a muscle spasm include an acute onset of pain and a possible bulge seen or felt beneath the skin where the muscle is located. Gently stretching the muscle usually resolves a muscle spasm.
Muscle cramps are involuntarily and forcibly contracted muscles that do not relax. Extremely common, any muscles that have voluntary control, including some organs, are subject to cramp. Since there is such variety in the types of muscle cramps that can occur, many causes and preventative medications are known. Stretching is the most common way to stop or prevent most muscle cramps.
Myofascial Pain Syndrome
Myofascial pain syndrome is muscle pain in the body's soft tissues due to injury or strain. Symptoms include muscle pain with tender points and fatigue. Treatment usually involves physical therapy, massage therapy, or trigger point injection.
Treatment & Diagnosis
Medications & Supplements
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.
Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.