Ethacrynic acid and Valsartan and hydrochlorothiazide interaction
Ethacrynic acid and Valsartan 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 Ethacrynic acid label · effective 2023-08-31
CONTRAINDICATIONS All diuretics, including ethacrynic acid, are contraindicated in anuria.
If increasing electrolyte imbalance, azotemia, and/or oliguria occur during treatment of severe, progressive renal disease, the diuretic should be discontinued.
In a few patients this diuretic has produced severe, watery diarrhea.
Like other diuretics it may precipitate hepatic coma and death.
A number of possibly drug-related deaths have occurred in critically ill patients refractory to other diuretics.
From the Valsartan and hydrochlorothiazide (Diovan HCT) label · effective 2026-02-13
In patients with an activated renin-angiotensin system, such as volume- and/or salt-depleted patients receiving high doses of diuretics, symptomatic hypotension may occur.
Lithium Interaction Increases in serum lithium concentrations and lithium toxicity have been reported with concomitant use of valsartan or thiazide diuretics.
Dosage reduction and/or discontinuation of the diuretic and/or Diovan may be required [see Adverse Reactions (6.1)] .
Valsartan: Agents Increasing Serum Potassium: Concomitant use of valsartan with other agents that block the renin-angiotensin system, potassium-sparing diuretics (e.g., spironolactone, triamterene, amiloride), potassium supplements, salt substitutes containing potassium or other drugs that may increase potassium levels (e.g., heparin) may lead to increases in…
Non-Steroidal Anti-Inflammatory Agents (NSAIDs), Including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including valsartan,…
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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.