Indomethacin and Triamterene and hydrochlorothiazide interaction
Indomethacin and Triamterene and hydrochlorothiazide: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Indomethacin (Indocin) label · effective 2024-12-16
Indomethacin and triamterene should not be administered together.
INDOCIN and triamterene should not be administered together.
Intervention: Indomethacin and triamterene should not be administered together.
Patients at greatest risk of this reaction are those with impaired renal function, dehydration, hypovolemia, heart failure, liver dysfunction, those taking diuretics and ACE inhibitors or ARBs, and the elderly.
Both Indomethacin and potassium-sparing diuretics may be associated with increased serum potassium levels.
From the Triamterene and hydrochlorothiazide label · effective 2026-07-16
Caution is advised in administering nonsteroidal anti-inflammatory agents with triamterene and hydrochlorothiazide.
Nonsteroidal Anti-Inflammatory Drugs A possible interaction resulting in acute renal failure has been reported in a few patients on triamterene and hydrochlorothiazide when treated with indomethacin, a nonsteroidal anti-inflammatory agent.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.