First-Line Dosing of Ketorolac (Toradol) for Acute Pain Management
The first-line dose of ketorolac for acute pain management is 30 mg IV/IM for patients under 65 years of age and 15 mg IV/IM for patients who are elderly (≥65 years), renally impaired, or weigh less than 50 kg. 1, 2
Dosing Guidelines Based on Administration Route
Intravenous/Intramuscular Administration
- Patients <65 years: 30 mg IV/IM every 6 hours (maximum daily dose: 120 mg) 1, 2
- Patients ≥65 years, renally impaired, or <50 kg: 15 mg IV/IM every 6 hours (maximum daily dose: 60 mg) 1, 2
- IV bolus must be administered over no less than 15 seconds 2
- IM injections should be given slowly and deeply into the muscle 2
Oral Administration (for continuation therapy only)
- Patients <65 years: Initial dose of 20 mg PO once, then 10 mg PO every 4-6 hours (maximum daily dose: 40 mg) 1
- Patients ≥65 years, renally impaired, or <50 kg: Initial dose of 10 mg PO once, then 10 mg PO every 4-6 hours (maximum daily dose: 40 mg) 1
Important Clinical Considerations
Timing and Duration
- Onset of analgesic effect: ~30 minutes 2
- Peak effect: 1-2 hours after administration 2, 3
- Duration of effect: 4-6 hours 2
- Maximum treatment duration: 5 days (combined IV/IM and oral therapy) 1, 2
Special Populations
- Pediatric patients: Not FDA approved for oral use in children under 17 years. For postoperative pain in children ≥1 year: 0.5 mg/kg IV initially, followed by 1.0 mg/kg IV every 6 hours or 0.17 mg/kg/hour IV infusion (maximum daily dose: 90 mg, maximum duration: 48 hours) 1
- Elderly patients: Higher risk of adverse effects; use reduced dosing 1
- Renal impairment: Increased risk of acute renal failure; use reduced dosing 1
Efficacy Considerations
- Ketorolac has a ceiling analgesic effect - doses above recommendations do not provide additional pain relief but increase adverse effect risk 1
- For breakthrough pain, do not increase dose or frequency; consider supplementing with low-dose opioids if not contraindicated 2
Contraindications
- History of peptic ulcer disease
- GI bleeding or perforation
- Advanced renal impairment
- Cerebrovascular bleeding
- Hemorrhagic diathesis/coagulation disorders
- Pregnancy
- Concurrent use with aspirin or other NSAIDs 1
Monitoring
- Baseline monitoring should include blood pressure, renal function tests, liver function tests, complete blood count, coagulation profile, and fecal occult blood test 1
- Monitor for signs of renal impairment, especially if patient is receiving potentially nephrotoxic medications 1
Common Adverse Effects
- GI upset, bleeding, perforation
- Edema
- Drowsiness and dizziness
- Acute renal failure (usually reversible upon discontinuation)
- Inhibition of platelet aggregation and increased bleeding time 1
Ketorolac is an effective non-opioid analgesic for acute pain management when used appropriately at the correct dosage for the shortest duration possible.