Bisoprolol and hydrochlorothiazide and Triamterene and hydrochlorothiazide interaction
Bisoprolol and hydrochlorothiazide and Triamterene and hydrochlorothiazide: both prescribing labels describe 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 Bisoprolol and hydrochlorothiazide (bisoprolol fumarate and hydrochlorothiazide) label · effective 2026-08-11
Because of the relative beta 1 -selectivity of bisoprolol fumarate, bisoprolol fumarate and hydrochlorothiazide tablets may be used with caution in patients with bronchospastic disease who do not respond to, or who cannot tolerate other antihypertensive treatment.
Drug Interactions Bisoprolol fumarate and hydrochlorothiazide tablets may potentiate the action of other antihypertensive agents used concomitantly.
Other antihypertensive drugs - additive effect or potentiation.
Diuretic agents reduce the renal clearance of lithium and add a high risk of lithium toxicity.
Nonsteroidal anti-inflammatory drugs - In some patients, the administration of a nonsteroidal anti-inflammatory agent can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium sparing, and thiazide diuretics.
From the Triamterene and hydrochlorothiazide label · effective 2026-07-16
Other Considerations Concurrent use of hydrochlorothiazide with amphotericin B or corticosteroids or corticotropin (ACTH) may intensify electrolyte imbalance, particularly hypokalemia, although the presence of triamterene minimizes the hypokalemic effect.
Thiazides may add to or potentiate the action of other antihypertensive drugs.
See INDICATIONS AND USAGE for concomitant use with other antihypertensive drugs.
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.