Chlorzoxazone 500mg
Generic For: Parafon Forte
Chlorzoxazone 500mg (brand name Parafon Forte) is a prescription skeletal muscle relaxant used along with rest and physical therapy to relieve discomfort from acute, painful muscle and joint conditions. After a licensed provider reviews your information and issues a valid prescription, your medication ships discreetly from a licensed U.S. pharmacy.
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Buy Chlorzoxazone 500mg (Parafon Forte) Online
A skeletal muscle relaxant for muscle spasms, back pain, and acute musculoskeletal pain
Chlorzoxazone 500mg Quick Facts
| Drug class | Skeletal muscle relaxant |
|---|---|
| Treats | Muscle spasms, back pain, acute musculoskeletal pain |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth 3-4 times daily as needed for muscle spasm. |
| Prescription required | Yes — prescription only |
What Is Chlorzoxazone 500mg?
Chlorzoxazone is a centrally acting skeletal muscle relaxant sold under the brand name Parafon Forte. It works in the brain and spinal cord to reduce muscle spasm, which can relieve pain and improve mobility in the affected muscles. It is prescribed as part of a broader plan that typically includes rest and physical therapy for acute, painful musculoskeletal conditions. Chlorzoxazone treats the discomfort of muscle spasm; it does not directly heal the underlying injury.
What Does Chlorzoxazone 500mg Treat?
Acute painful musculoskeletal conditions
Muscle spasms
Muscle strains and sprains (adjunct to rest and physical therapy)
Acute back pain associated with muscle spasm
Neck pain associated with muscle spasm
Discomfort from acute muscle injuries
Chlorzoxazone 500mg Dosage
Adults: 500 mg by mouth 3 to 4 times daily.
May be reduced to 250 mg 3-4 times daily as symptoms improve, or increased to 750 mg 3-4 times daily if needed.
Use for short-term treatment of acute conditions as directed by your prescriber.
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Chlorzoxazone 500mg Side Effects
Common side effects
- Drowsiness
- Dizziness
- Lightheadedness
- Upset stomach or nausea
- Headache
- Overstimulation or feeling jittery
- Harmless orange or reddish-purple urine discoloration
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Signs of liver problems (yellowing skin or eyes, dark urine, right upper abdominal pain, unusual fatigue)
- Severe allergic reaction (rash, hives, swelling of face or throat, trouble breathing)
- Unusual bleeding or bruising
- Gastrointestinal bleeding (black or bloody stools, vomiting blood)
- Extreme drowsiness or confusion
Warnings & Interactions
Do not use if allergic to chlorzoxazone
Rare but serious, sometimes fatal liver toxicity has been reported; stop and seek care if signs of liver injury occur
Avoid alcohol; it increases drowsiness and liver risk
Use caution with other CNS depressants (opioids, benzodiazepines, sedatives)
May impair ability to drive or operate machinery
Use with caution in patients with a history of liver disease
Tell your provider if you are pregnant, planning pregnancy, or breastfeeding
Tell your prescriber about all medications, supplements, and health conditions before starting chlorzoxazone 500mg.
Sources & References
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