Some of the more common side effects of cyclobenzaprine include blurred vision, dizziness, drowsiness and dryness of the mouth, according to Drugs.com. Side effects such as gas, nausea, vomiting, stomach cramps or pain are less common.
Used as a treatment for pain or injury of the skeletal muscles, cyclobenzaprine is a muscle relaxant, explains Drugs.com. Patients take this medication under the care of a physician and are cautioned to report any side effects that may require medical attention, states Drugs.com. Side effects warrant medical advice, but not necessarily a visit to the emergency room. Contact the prescribing physician if fainting, convulsions, fever or restlessness occur. Also, if the patient experiences flushing of the skin, vomiting or unusual muscle stiffness, seek the advice of the physician who prescribed the medication.
When the patient experiences rare side effects that cause extreme reactions, seek emergency medical attention, cautions Drugs.com. Discontinue using cyclobenzaprine and seek medical attention immediately if the side effects include changes in the color of the face, irregular heart beat, hives, swelling around the eyes, itching or respiratory issues such as difficulty breathing.
Cyclobenzaprine can affect the nervous system, cause issues with the psychiatric condition of the patient, cause extreme allergic reaction or anaphylaxis, affect the cardiovascular system, or any combination of these effects, notes Drugs.com. Side effects are not always so severe that they warrant medical attention, but it is important to report any side effects outlined on the warning label, and to follow the advice of the physician with regard to discontinuing use of the product.