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Safety Information

Indomethacin Contraindications & InteractionsWhen Not to Use & Important Drug Interactions

Screen carefully before using indomethacin due to high adverse effect burden.

Clinical Utility: 7/10
1 Clinical Sources
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Absolute: NSAID anaphylaxis, significant GI bleeding, or neonates with high-risk comorbidities. Relative: renal/hepatic impairment, seizure disorders, coagulation defects, and uncontrolled hypertension.

Contraindications

Absolute Contraindications (Never Use)

History of aspirin-sensitive asthma or severe NSAID hypersensitivity

Indomethacin can trigger life-threatening bronchospasm, angioedema, and anaphylaxis in patients who reacted to aspirin or other NSAIDs; choose a non–NSAID analgesic instead.

Active gastrointestinal bleeding or recent perforation

NSAID-related prostaglandin inhibition increases bleeding risk and delays mucosal healing, so avoid indomethacin until the lesion has resolved.

Perioperative pain management in patients undergoing coronary artery bypass graft (CABG) surgery

Labeling warns of higher cardiovascular thrombotic events with peri-CABG NSAID use; alternative analgesia is required.

Relative Contraindications (Use With Caution)

Chronic kidney disease or volume depletion

Indomethacin reduces renal perfusion and may precipitate acute kidney injury; monitor creatinine closely and hydrate before dosing if no safer option exists.

Coagulation disorders or concomitant anticoagulant therapy

Platelet inhibition increases bleeding, so weigh risks and consider gastroprotection or a different agent in high-risk children.

Uncontrolled hypertension, congestive heart failure, or fluid retention

Indomethacin can elevate blood pressure and worsen edema; titrate carefully with baseline and follow-up blood pressure checks.

Pregnancy beyond 30 weeks gestation

Late pregnancy exposure can cause premature ductus arteriosus closure and fetal renal dysfunction; reserve use for earlier gestational windows when maternal benefit outweighs fetal risk.

Clinical References

Indomethacin Consumer Informationβ€’MedlinePlus (2024)