Drug interactions
Indomethacin + Potassium acid
Severity: Moderate
Indomethacin and Potassium acid: 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
Potassium acid phosphate supplies potassium, and indomethacin may reduce renal potassium excretion. Together they can cause hyperkalemia, especially in renal impairment.
What this interaction means in plain words
Indomethacin and Potassium acid 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.
Why it happens
Additive hyperkalemia: NSAID-induced hyporeninemic hypoaldosteronism and reduced GFR plus an exogenous potassium load.
What to do
Check serum potassium and renal function within the first week of concurrent therapy and periodically thereafter, adjusting the potassium dose as needed.
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?
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Other interactions of Indomethacin
- Indomethacin + Ketorolac Contraindicated
- Indomethacin + Ketorolac intranasal Contraindicated
- Aceclofenac + Indomethacin Major
- Acemetacin + Indomethacin Major
- Acetylsalicylic acid + Indomethacin Major
- Alteplase + Indomethacin Major
Frequently asked questions
Can I take Indomethacin with Potassium acid?
MediHelp rates the interaction as moderate. Indomethacin and Potassium acid 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. Potassium acid phosphate supplies potassium, and indomethacin may reduce renal potassium excretion. Together they can cause hyperkalemia, especially in renal impairment.
How serious is the interaction between Indomethacin and Potassium acid?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check serum potassium and renal function within the first week of concurrent therapy and periodically thereafter, adjusting the potassium dose as needed.
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.
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