Benazepril and hydrochlorothiazide and Torsemide interaction

Benazepril and hydrochlorothiazide and Torsemide: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Benazepril and hydrochlorothiazide (Lotensin HCT) label · effective 2026-02-24

Moderate

Symptomatic hypotension is most likely to occur in patients who have been volume and/or salt depleted as a result of prolonged diuretic therapy, dietary salt restriction, dialysis, diarrhea, or vomiting.

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Moderate

The thiazide component of Lotensin HCT may potentiate the action of other antihypertensive drugs, especially ganglionic or peripheral adrenergic-blocking drugs.

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Moderate

In such patients, Lotensin HCT therapy should be started under close medical supervision; they should be followed closely for the first 2 weeks of treatment and whenever the dose of benazepril or diuretic is increased.

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Moderate

In a small study of hypertensive patients with unilateral or bilateral renal artery stenosis , treatment with benazepril was associated with increases in blood urea nitrogen and serum creatinine; these increases were reversible upon discontinuation of benazepril therapy, concomitant diuretic therapy, or both.

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Moderate

NSAIDs and Cox-2 selective agents: 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 ACE inhibitors, including benazepril, may result in deterioration of renal function, including possible acute renal failure.

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From the Torsemide label · effective 2026-07-21

Moderate

Ototoxicity Tinnitus and hearing loss (usually reversible) have been observed with loop diuretics, including torsemide.

Warnings and precautionsby drug classView label on DailyMed
Moderate

Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): Reduced diuretic, natriuretic, and antihypertensive effects; risk of renal impairment.

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Moderate

Organic Anion Drugs: May decrease diuretic activity of torsemide.

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Moderate

The antihypertensive and diuretic effects of torsemide can be reduced by NSAIDs.

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Moderate

Monitor diuretic effect and blood pressure when used in combination with CYP2C9 inhibitor or inducer.

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Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not 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.