Ketorolac Drug Profile

What is Ketorolac?

Ketorolac is a nonsteroidal anti-inflammatory drug (NSAID) that provides powerful pain relief for short-term use. It is available in both oral and injectable forms and is typically prescribed for moderate to severe acute pain when opioid medications are not suitable or desired. Ketorolac is intended for short-term treatment only, usually no longer than five days total.

Uses

Ketorolac is approved for several pain management situations:

• Post-surgical pain: Commonly used after operations to manage moderate to severe pain during recovery
• Acute musculoskeletal injuries: Treatment of pain from sprains, strains, and other soft tissue injuries
• Kidney stone pain: Provides relief from the severe pain associated with renal colic
• Emergency department pain management: Used as an alternative to opioids for various acute pain conditions
• Dental pain: Prescribed for severe dental procedures or oral surgery recovery

How it works

Ketorolac works by blocking cyclooxygenase (COX) enzymes, specifically COX-1 and COX-2, which are responsible for producing prostaglandins. Prostaglandins are chemicals that cause inflammation, pain, and fever at injury sites. By reducing prostaglandin production, ketorolac effectively decreases pain and inflammation without the sedating effects associated with opioid pain medications.

Side effects

Common side effects include:

Submit Your Paper

• Nausea and stomach upset
• Diarrhea or constipation
• Dizziness or drowsiness
• Headache
• Injection site pain (for injectable forms)
• Indigestion or heartburn
• Fluid retention and swelling

Serious side effects requiring immediate medical attention:

• Gastrointestinal bleeding or stomach ulcers
• Kidney problems or decreased urination
• Severe allergic reactions including difficulty breathing
• Heart attack or stroke symptoms
• Severe skin reactions or rash

Warnings and precautions

Several important safety considerations apply to ketorolac use:

• Duration limit: Treatment should not exceed 5 days total due to increased risk of serious side effects with longer use
• Cardiovascular risk: May increase risk of heart attack and stroke, especially in patients with existing heart disease or risk factors
• Gastrointestinal concerns: Contraindicated in patients with active peptic ulcer disease, recent GI bleeding, or high risk of GI complications
• Kidney function: Should be avoided in patients with severe kidney disease and used cautiously in elderly patients or those at risk for kidney problems
• Pregnancy and breastfeeding: Not recommended during pregnancy, especially in the third trimester, and should be used with caution during breastfeeding

Interactions

Ketorolac can interact with numerous medications:

• Warfarin and blood thinners: Increased risk of bleeding complications due to enhanced anticoagulant effects
• ACE inhibitors and ARBs: Reduced effectiveness of blood pressure medications and increased kidney injury risk
• Lithium: Ketorolac can increase lithium levels, potentially causing toxicity
• Methotrexate: May increase methotrexate levels and risk of serious side effects
• Diuretics: Reduced effectiveness of water pills and increased risk of kidney problems
• Other NSAIDs: Concurrent use increases risk of gastrointestinal and kidney side effects
• Corticosteroids: Increased risk of gastrointestinal bleeding when used together
• Aspirin: May reduce cardioprotective effects of low-dose aspirin and increase bleeding risk

Check interactions with the GMJ Interaction Checker

Dosage

Ketorolac dosing varies based on the route of administration and patient factors. For oral tablets, the typical adult dose is 10 mg every 4-6 hours as needed, not exceeding 40 mg per day. Injectable forms may be given as 30-60 mg initially, followed by 15-30 mg every 6 hours as needed. Elderly patients and those with kidney impairment typically require lower doses. The total treatment duration should not exceed 5 days for any route of administration. All dosing decisions should be made by a healthcare provider who can assess individual patient needs and risk factors.

Sources: FDA DailyMed drug labels (public domain), BNF, WHO Essential Medicines List. This article is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before starting or stopping any medication.

This work is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0). You are free to share and adapt this content with attribution to GMJ News (news.gmj.ge).