Avoid Ketorolac (Toradol) in Patients Taking Apixaban (Eliquis) 5 mg
Ketorolac should not be administered to patients taking apixaban 5 mg twice daily due to a significantly increased risk of major bleeding. The combination of a direct oral anticoagulant with an NSAID creates additive antiplatelet and anticoagulant effects that substantially elevate hemorrhagic complications.
Mechanism of Increased Bleeding Risk
The FDA explicitly warns that concomitant use of NSAIDs—including ketorolac—with apixaban increases the risk of bleeding and can cause serious, potentially fatal hemorrhage. 1
Ketorolac reversibly inhibits cyclooxygenase and thromboxane synthesis, producing antiplatelet effects that prolong bleeding time, which compounds the anticoagulant effect of apixaban. 2
The 2023 ACC/AHA/ACCP/HRS guidelines state that drugs affecting hemostasis—including NSAIDs—increase bleeding risk when combined with apixaban. 3
Evidence of Bleeding Complications
Ketorolac is associated with gastrointestinal bleeding, perforation, and operative-site bleeding, with risk increasing at higher doses and in vulnerable patients such as the elderly. 4
The incidence of serious adverse events with ketorolac has declined since dosage guidelines were revised, but the overall risk of gastrointestinal or operative-site bleeding remains slightly higher than with opioids and is substantially elevated when combined with anticoagulants. 4
Apixaban already carries an inherent bleeding risk; in the ARISTOTLE trial, major bleeding occurred in patients receiving apixaban, and adding an NSAID would further amplify this risk. 5
Safer Analgesic Alternatives
Acetaminophen (paracetamol) is the preferred first-line analgesic for patients on apixaban, as it does not inhibit platelet function or increase bleeding risk. 3
If opioid analgesia is required, morphine or hydrocodone can be used cautiously, as these agents do not affect hemostasis and have been compared favorably to ketorolac in postoperative pain management. 3, 2
Tramadol represents another option for moderate pain, offering analgesic efficacy without the antiplatelet effects of NSAIDs. 3
Additional Contraindications to Ketorolac
Ketorolac is contraindicated in patients with a history of gastrointestinal bleeding, compromised hemostasis, or hypersensitivity to aspirin or other NSAIDs. 4
Ketorolac can precipitate bronchospasm in patients with asthma, rhinitis, or nasal polyps, and should be avoided in these populations. 6
Acute renal failure has been reported after ketorolac treatment, which is particularly concerning in patients taking apixaban who may already have renal impairment requiring dose adjustment. 4
Clinical Decision Algorithm
Confirm the patient is taking apixaban 5 mg twice daily and assess the indication for analgesia.
Avoid all NSAIDs, including ketorolac, ibuprofen, and naproxen, due to additive bleeding risk. 1, 3
Initiate acetaminophen up to 4 grams daily (divided doses) as first-line therapy for mild-to-moderate pain. 3
If acetaminophen is insufficient, add a short-acting opioid (e.g., oxycodone 5–10 mg every 4–6 hours) for moderate-to-severe pain. 3
Monitor for signs of bleeding (e.g., hematemesis, melena, hematuria, unexplained bruising, hemoglobin drop ≥2 g/dL) and advise the patient to report symptoms immediately. 1
Reassess renal function if opioids or acetaminophen are used long-term, as apixaban dosing depends on creatinine clearance calculated by the Cockcroft-Gault equation. 7
Common Pitfalls
Do not assume that a single dose of ketorolac is safe; even short-term NSAID use in anticoagulated patients increases bleeding risk. 4
Avoid topical NSAIDs (e.g., diclofenac gel) as well, since systemic absorption can still occur and contribute to bleeding risk. 4
Do not use aspirin for analgesia in patients on apixaban unless there is a compelling cardiovascular indication (e.g., recent acute coronary syndrome), as dual antiplatelet-anticoagulant therapy markedly increases hemorrhagic complications. 8
If the patient has already received ketorolac, monitor closely for 24–48 hours (approximately two half-lives of ketorolac) for signs of bleeding, and consider holding the next dose of apixaban if active bleeding occurs. 1, 9