Methocarbamol is a prescription medication used to treat pain and muscle spasms, according to WebMD. Also known by its brand name, Robaxin, it is typically prescribed to be taken by mouth three or four times a day, depending on a patient's medical condition and response to treatment.
Most side effects associated with the use of methocarbamol are mild, states WebMD. The most common problems are blurred vision, dizziness, nausea, vomiting, drowsiness, jaundice and feeling light-headed. It is important that patients take the medication as prescribed because doing otherwise can intensify side effects. If these problems worsen or don't decrease over time, patients should call their doctor.
Although serious side effects from methocarbamol are rare, they are a possibility, WebMD warns. Patients should seek medical help if they experience confusions, forgetfulness, fainting or a slow heartbeat. If nausea or vomiting persists, patients should also call their doctor.
Although reports of severe allergic reactions are rare with methocarbamol, patients should get emergency medical treatment if they experience symptoms, WebMD says. Patients should seek immediate help if they experience symptoms such as a rash or itching and swelling, especially in the throat. Other signs of a severe allergic reaction include extreme dizziness and difficulty breathing.