Drug interactions
Duloxetine + Ketorolac
Severity: Major
Duloxetine and Ketorolac: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Duloxetine increases bleeding risk when combined with ketorolac, especially upper gastrointestinal bleeding.
What this interaction means in plain words
Duloxetine and Ketorolac can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Duloxetine belongs to Central Nervous System; Ketorolac belongs to Musculoskeletal.
Why it happens
Serotonin reuptake inhibition impairs platelet aggregation, adding to ketorolac's COX-1 inhibition and gastric mucosal damage.
What to do
Avoid the combination where possible, or limit ketorolac to a short course. Consider a proton pump inhibitor and monitor for bleeding.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Ketorolac
- Aceclofenac + Ketorolac Contraindicated
- Acemetacin + Ketorolac Contraindicated
- Acetylsalicylic acid + Ketorolac Contraindicated
- Apixaban + Ketorolac Contraindicated
- Argatroban + Ketorolac Contraindicated
- Aspirin / citric acid / sodium bicarbonate + Ketorolac Contraindicated
Other interactions of Duloxetine
- Duloxetine + Isocarboxazid Contraindicated
- Duloxetine + Linezolid Contraindicated
- Duloxetine + Methylene blue Contraindicated
- Duloxetine + Phenelzine Contraindicated
- Duloxetine + Procarbazine Contraindicated
- Duloxetine + Rasagiline Contraindicated
Frequently asked questions
Can I take Duloxetine with Ketorolac?
MediHelp rates the interaction as major. Duloxetine and Ketorolac can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Duloxetine increases bleeding risk when combined with ketorolac, especially upper gastrointestinal bleeding.
How serious is the interaction between Duloxetine and Ketorolac?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible, or limit ketorolac to a short course. Consider a proton pump inhibitor and monitor for bleeding.
What other medicines interact with Ketorolac?
MediHelp also lists interactions of Ketorolac with, for example, Aceclofenac, Acemetacin, Acetylsalicylic acid. The full list is on the Ketorolac page.
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