Flexeril side effects


Flexeril side effects :
a look at Purpose, Interactions and Warnings

Flexeril (Cyclobenzaprine), a muscle relaxant, 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.

Flexeril side effects and interactions

This medicine will add to the effects of alcohol and other CNS depressants (medicines that slow down the nervous system, possibly causing drowsiness). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds; sedatives, tranquilizers, or sleeping medicine; prescription pain medicine or narcotics; barbiturates; medicine for seizures; other muscle relaxants; or anesthetics, including some dental anesthetics. Check with your doctor before taking any of the above while you are using this medicine.

Flexeril may cause some people to have blurred vision or to become drowsy, dizzy, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are dizzy or are not alert and able to see well.

Cyclobenzaprine may cause dryness of the mouth. For temporary relief, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your medical doctor or dentist. Continuing dryness of the mouth may increase the chance of dental disease, including tooth decay, gum disease, and fungus infections.

Observed Flexeril side effects

Along with its needed effects, there may be unwanted Flexeril side effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

The following Flexeril side effects may mean that you are having a serious allergic reaction to the medicine. Get emergency help right away if any of them occur:

Rarely Observed

Changes in the skin color of the face; fast or irregular breathing; large swellings that look like hives on the face, eyelids, mouth, lips, and/or tongue; puffiness or swelling of the eyelids or the area around the eyes ; shortness of breath, troubled breathing, tightness in chest, and/or wheezing; skin rash, hives, or itching.

Also, check with your doctor immediately if any of the following side effects occur:

Rarely Observed

Fainting; Clumsiness or unsteadiness; confusion ; mental depression or other mood or mental changes ; problems in urinating; ringing or buzzing in the ears; skin rash, hives, or itching occurring without other symptoms of an allergic reaction listed above; unusual thoughts or dreams; yellow eyes or skin.

Flexeril side effects from overdose

Convulsions (seizures); drowsiness (severe) ; dry, hot, flushed skin; fast or irregular heartbeat; hallucinations (seeing, hearing, or feeling things that are not there); increase or decrease in body temperature; troubled breathing; unexplained muscle stiffness; unusual nervousness or restlessness (severe); vomiting (occurring together with other symptoms of overdose).

Other Flexeril side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

More Commonly Observed

Blurred vision; dizziness or lightheadedness ; drowsiness; dryness of mouth.

Less Commonly Observed

Bloated feeling or gas, indigestion, nausea or vomiting, or stomach cramps or pain; constipation; diarrhea; excitement or nervousness; frequent urination; general feeling of discomfort or illness; headache; muscle twitching; numbness, tingling, pain, or weakness in hands or feet; pounding heartbeat ; problems in speaking; trembling; trouble in sleeping; unpleasant taste or other taste changes; unusual muscle weakness; unusual tiredness;

Other Flexeril side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.

Sources : The American Society of Health-System Pharmacists (ASHP) and the United States Pharmacopeia (USP)


There are alternatives to enduring Flexeril side effects.
More information here.


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