"For what conditions are pain medications used?
Virtually any disease as well as most injuries and surgical procedures involve some degree of pain. It's not surprising, then, that pain medications, also known as analgesics, are among t"...
Parafon Forte Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Parafon Forte (chlorzoxazone) is prescribed to treat musculoskeletal pain or injury. It is usually used in conjunction with rest and physical therapy. Parafon Forte is a muscle relaxant and is available in generic form. Side effects may include drowsiness, dizziness, light-headedness, upset stomach, or headache.
Parafon Forte is dosed in 500 mg caplets, taken orally three or four times per day. Parafon Forte may interact with cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, seizure medication, antidepressants or anti-anxiety medications. Parafon Forte may harm a fetus, and should be used only when clearly needed during pregnancy. Consult your physician if you are pregnant. It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.
Our Parafon Forte Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
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.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Parafon Forte in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using chlorzoxazone and call your doctor at once if you have any of these serious side effects:
- nausea, stomach pain, low fever, loss of appetite, itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
- black, bloody, or tarry stools;
- coughing up blood or vomit that looks like coffee grounds; or
- feeling like you might pass out.
Less serious side effects may include:
- drowsiness, dizziness, tired feeling;
- slightly discolored urine; or
- mild skin rash or bruising.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Parafon Forte (Chlorzoxazone) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Parafon Forte Overview - Patient Information: Side Effects
This medication may rarely cause your urine to turn orange or reddish-purple. This effect is harmless and will disappear when the medication is stopped.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: confusion, black/bloody stools, vomit that looks like coffee grounds, easy bruising/bleeding, signs of infection (such as fever, persistent sore throat).
This medication may rarely cause very serious (possibly fatal) liver disease. Stop taking this medication and get medical help right away if you develop symptoms of liver disease, including: persistent nausea/vomiting, stomach/abdominal pain, yellowing eyes/skin, dark urine.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Parafon Forte (Chlorzoxazone)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Parafon Forte FDA Prescribing Information: Side Effects
Chlorzoxazone containing products are usually well tolerated. It is possible in rare instances that chlorzoxazone may have been associated with gastrointestinal bleeding. Drowsiness, dizziness, light- headedness, malaise, or overstimulation may be noted by an occasional patient. Rarely, allergic-type skin rashes, petechiae, or ecchymoses may develop during treatment. Angioneurotic edema or anaphylactic reactions are extremely rare. There is no evidence that the drug will cause renal damage. Rarely, a patient may note discoloration of the urine resulting from a phenolic metabolite of chlorzoxazone. This finding is of no known clinical significance.
Read the entire FDA prescribing information for Parafon Forte (Chlorzoxazone) »
Additional Parafon Forte Information
Parafon Forte - User Reviews
Parafon Forte User Reviews
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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