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Drug interactions

Citalopram + Indomethacin

Severity: Moderate

Citalopram and Indomethacin: moderate 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

Combining an SSRI with an NSAID raises the risk of gastrointestinal bleeding above that of either drug alone. The risk is greater in older patients and those with prior ulcers or on anticoagulants.

What this interaction means in plain words

Citalopram and Indomethacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Citalopram belongs to Central Nervous System; Indomethacin belongs to Musculoskeletal.

Evidence level: High

Why it happens

SSRIs deplete platelet serotonin and impair aggregation, while indomethacin inhibits platelet COX-1 and damages gastric mucosa, producing additive bleeding risk.

What to do

Avoid if possible or add a proton pump inhibitor for gastroprotection in at-risk patients. Monitor for melena, hematemesis and falling hemoglobin.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Citalopram with Indomethacin?

MediHelp rates the interaction as moderate. Citalopram and Indomethacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Combining an SSRI with an NSAID raises the risk of gastrointestinal bleeding above that of either drug alone. The risk is greater in older patients and those with prior ulcers or on anticoagulants.

How serious is the interaction between Citalopram and Indomethacin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid if possible or add a proton pump inhibitor for gastroprotection in at-risk patients. Monitor for melena, hematemesis and falling hemoglobin.

What other medicines interact with Indomethacin?

MediHelp also lists interactions of Indomethacin with, for example, Ketorolac, Ketorolac intranasal, Aceclofenac. The full list is on the Indomethacin page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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