About chlorzoxazone
Centrally acting muscle relaxant
Used for
- Short-term relief of painful muscle spasms, usually alongside rest and physical therapy.
Usual adult dose
Commonly 500 mg three or four times daily; dosing varies by product and local guidance.
Common side effects
- Drowsiness or dizziness
- Stomach upset
- Rarely, serious liver injury
Important warnings
- Avoid alcohol and use caution driving; drowsiness may occur.
- Stop and seek medical care for yellow skin, dark urine, or unusual fatigue.
- Rare severe liver injury has been reported; risk may increase with liver disease.
Pregnancy
Safety is not well established; use only when a clinician determines it is necessary.
Breastfeeding
Effects on a nursing infant are uncertain; seek clinical guidance before use.
Interactions
- Alcohol and other medicines that cause drowsiness may increase sedation.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.