Benazepril and hydrochlorothiazide and Phenoxybenzamine interaction
Benazepril and hydrochlorothiazide and Phenoxybenzamine: the Benazepril and hydrochlorothiazide prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.
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
The thiazide component of Lotensin HCT may potentiate the action of other antihypertensive drugs, especially ganglionic or peripheral adrenergic-blocking drugs.
Lotensin HCT should be used cautiously in patients receiving concomitant therapy with other antihypertensives.
Most epidemiologic studies examining fetal abnormalities after exposure to antihypertensive use in the first trimester have not distinguished drugs affecting the renin-angiotensin system from other antihypertensive agents.
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.