Oxycodone oral tablet is available as brand-name drugs and as a generic drug. Brand names: Oxaydo, Roxicodone, Roxybond, OxyContin. Oxycodone comes in five forms: immediate-release tablet. Dachshunds being treated for disc disease, either with surgery or conventional treatment, are likely to be administered some of the medications discussed here. Side effects from methocarbamol may be worse if you have kidney or liver disease. You may also be at higher risk for side effects if you're 65 or older. Consumer information about the medication methocarbamol (Robaxin, Robaxin-750), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug methocarbamol (Robaxin, Robaxin-750). Learn about the potential side effects of methocarbamol. Includes common and rare side effects information for consumers and healthcare professionals. Methocarbamol is used with rest, physical therapy, and other measures to relax muscles and relieve pain and discomfort caused by strains, sprains, and other muscle injuries. Robaxin®/Robaxin 750® (methocarbamol) Tablets, USP. DESCRIPTION. robaxin®/robaxin®- 750 (methocarbamol tablets, USP), a carbamate derivative of guaifenesin, is a central nervous system (CNS) depressant with sedative and musculoskeletal relaxant properties. Methocarbamol is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain. Methocarbamol is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury. SIDE EFFECTS. 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. For use as an adjunct to rest, physical therapy, and other measures for the relief of musculoskeletal pain associated with acute, painful musculoskeletal conditions.