Diclofenac Suppository Dosage and Usage Guidelines

Dosage Recommendations

The American Society of Anesthesiologists recommends diclofenac suppository 50-100 mg every 8 hours for post-operative pain, not exceeding 150 mg daily 1
Duration of treatment should be limited to the acute pain period (typically 2-3 days for dysmenorrhea, 3-5 days for post-operative pain) 2
For children, diclofenac suppository 0.5-1 mg/kg every 8 hours for post-operative pain 3, 4
Not recommended for children under 12 years without specific pediatric evaluation 3

Diclofenac suppositories are particularly useful when oral administration is not feasible in the immediate post-operative period 1
Should be incorporated into a multimodal analgesic approach, combining with paracetamol (acetaminophen) for enhanced analgesia 1, 5
For severe post-operative pain unresponsive to NSAIDs alone, add a strong opioid (morphine or oxycodone) 1, 6
Intravenous lidocaine (1-2 mg/kg bolus followed by 1-2 mg/kg/h infusion) may be considered as an alternative for major abdominal, pelvic, or spinal surgeries when regional analgesia is not used 1

Do not combine with curative doses of anticoagulants due to 2.5-fold increased risk of severe bleeding 1, 2, 7
Avoid in patients with history of atherothrombosis (peripheral artery disease, stroke, myocardial infarction) 2
Avoid in patients with renal impairment (estimated creatinine clearance <50 mL/min) 2
Consider adding dexamethasone (8 mg IV in adults, 0.15 mg/kg in children) to reduce post-operative pain and nausea/vomiting 1, 6

Prolonged use beyond 7 days in patients with cardiovascular risk factors should be avoided 2, 7
For severe post-operative pain, consider small doses of ketamine (0.5 mg/kg followed by 0.125-0.25 mg/kg/h) as an adjunct for patients with high risk of chronic post-operative pain or those on long-term opioids 1, 6
Monitor for gastrointestinal and renal adverse effects, particularly in elderly patients or those with pre-existing conditions 7