About chlorzoxazone + acetaminophen
Centrally acting muscle relaxant plus analgesic
Used for
- Short-term relief of painful muscle spasms
- Pain associated with muscle and joint conditions
Usual adult dose
Commonly, chlorzoxazone 250–500 mg with paracetamol 325–500 mg, three or four times daily; formulation varies.
Common side effects
- Drowsiness or dizziness
- Upset stomach
- Rash or itching
- Rare liver injury
Important warnings
- Avoid alcohol; drowsiness may impair driving.
- Paracetamol overdose can cause severe liver damage.
- Avoid combining with other paracetamol-containing medicines.
- Use cautiously with liver disease or other sedating medicines.
Pregnancy
Safety is not well established; use only when a clinician considers it necessary.
Breastfeeding
Safety information is limited; consult a healthcare professional before use.
Interactions
- Alcohol and sedatives may increase drowsiness.
- Other paracetamol-containing products increase liver-injury risk.
- Warfarin may have increased effects with regular paracetamol use.
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 It may be incomplete or out of date.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.