Zerodol TH Dosing and Administration
For adults and children 12 years and older, take 1 tablet every 4 hours, not exceeding 6 tablets in 24 hours; this medication is contraindicated in children under 12 years due to excessive medication content. 1
Dosing Instructions
- Standard dose: 1 tablet every 4 hours as needed
- Maximum daily dose: 6 tablets per 24 hours
- Age restriction: Not for use in children under 12 years 1
Each tablet contains:
- Aceclofenac 100 mg (NSAID)
- Paracetamol 500 mg (acetaminophen)
- Tramadol 37.5 mg (opioid analgesic)
Key Contraindications and Warnings
Absolute Contraindications
- Children under 12 years: The medication contains excessive amounts for pediatric use 1
- Pregnancy and breastfeeding: Requires consultation with healthcare professional before use 1
Critical Safety Warnings
Overdose risk: Exceeding recommended doses can cause severe liver damage from the paracetamol component. Immediate medical attention is critical even without symptoms—contact Poison Control (1-800-222-1222) immediately if overdose suspected 1
Important Considerations
Opioid component concerns: The tramadol in this formulation carries risks similar to other opioids. Guidelines recommend against routine opioid use as first-line therapy for conditions like acute low back pain, reserving them only for severe, disabling pain not controlled by acetaminophen or NSAIDs alone 2. The combination nature of this medication means you're committing to opioid therapy whenever prescribing it.
NSAID risks: The aceclofenac component requires consideration of gastrointestinal and renal risk factors, particularly in older adults 3. Standard NSAID precautions apply regarding cardiovascular risk, GI bleeding, and renal function.
Common adverse effects: The tramadol/paracetamol combination is associated with increased adverse events compared to placebo, with nausea and vomiting being predominant 4, 5. The risk ratio for adverse events with tramadol-containing combinations is approximately 2.1-2.6 times that of placebo 6.
Clinical Context
This triple-combination formulation provides multimodal analgesia for moderate to severe pain 4. Research supports efficacy in postoperative pain, musculoskeletal pain, and acute painful conditions 4, 7. However, the fixed combination means you cannot titrate individual components independently—if one component causes issues or proves inadequate, the entire formulation must be changed.
Duration considerations: This is intended for acute pain management. Extended-release opioid formulations are inappropriate for acute pain and should never be used 2. Monitor closely if treatment extends beyond several days, as prolonged opioid use (>7 days) in acute injury settings is associated with higher risk of long-term disability 2.