Get emergency medical help if you have signs of an allergic reaction to methocarbamol: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using methocarbamol and call your doctor at once if you have:
a light-headed feeling, like you might pass out;
slow heartbeats;
a seizure;
jaundice (yellowing of your skin or eyes); or
pain, bruising, swelling, or skin changes where the injection was given.
Common methocarbamol side effects may include:
headache, dizziness, drowsiness;
fever;
confusion, problems with memory;
nausea, vomiting, upset stomach;
blurred vision, double vision;
flushing (warmth, redness, or tingly feeling);
sleep problems (insomnia); or
lack of coordination.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Methocarbamol side effects (more detail)
