Drug interactions
Bendroflumethiazide + Bumetanide
Severity: Moderate
Bendroflumethiazide and Bumetanide: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Combining a loop diuretic with a thiazide produces sequential nephron blockade and a markedly stronger diuresis. This helps in diuretic resistance but substantially raises the risk of hypokalemia, hyponatremia, hypomagnesemia, dehydration and renal impairment.
What this interaction means in plain words
Bendroflumethiazide and Bumetanide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Synergistic sodium and potassium excretion from blocking reabsorption at both the loop of Henle and the distal tubule.
What to do
Start with low doses and monitor electrolytes, renal function, weight and blood pressure within the first week. Supplement potassium and magnesium or add a potassium-sparing agent as needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Bendroflumethiazide and Bumetanide, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Bumetanide
Frequently asked questions
Can I take Bendroflumethiazide with Bumetanide?
MediHelp rates the interaction as moderate. Bendroflumethiazide and Bumetanide can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Combining a loop diuretic with a thiazide produces sequential nephron blockade and a markedly stronger diuresis. This helps in diuretic resistance but substantially raises the risk of hypokalemia, hyponatremia, hypomagnesemia, dehydration and renal impairment.
How serious is the interaction between Bendroflumethiazide and Bumetanide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start with low doses and monitor electrolytes, renal function, weight and blood pressure within the first week. Supplement potassium and magnesium or add a potassium-sparing agent as needed.
What other medicines interact with Bumetanide?
MediHelp also lists interactions of Bumetanide with, for example, Amifostine, Amikacin, Captopril-hydrochlorothiazide. The full list is on the Bumetanide page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
