Common Brands Robaxin (brand tablets no longer available)
Drug Class
Muscle relaxant
Controlled Substance Classification
Not a controlled medication
Generic Status
Lower-cost generic available
Prescription only
Robert Chad Hakim, PharmD, BCCCP
Robert Chad Hakim, PharmD, BCCCP
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Medically reviewed by Robert Chad Hakim, PharmD, BCCCP last update on 20/12/2023


Methocarbamol is a medication classified as a centrally acting muscle relaxant. It is commonly prescribed to alleviate muscle spasms and discomfort associated with various musculoskeletal conditions. This drug is available in both generic and brand-name forms.

Methocarbamol’s chemical structure consists of a central core with various functional groups, which contribute to its muscle-relaxing properties. It is part of the carbamate class of drugs and is chemically related to guaifenesin.

How Does Methocarbamol Work?

Mechanism of Action

Methocarbamol exerts its muscle-relaxing effects primarily by depressing the central nervous system. It acts on the spinal cord and brain to decrease muscle activity, thereby reducing muscle spasms and pain.

How it Affects the Body

When Methocarbamol is ingested, it is metabolized in the liver and excreted by the kidneys. It does not have a direct effect on skeletal muscles but rather influences the neural pathways that control muscle contraction. By calming these pathways, it helps relax muscles, providing relief from spasms and discomfort.



Prescription only

Pregnancy & Lactation