Drug interactions
Bumetanide + Cyclopenthiazide
Severity: Moderate
Bumetanide and Cyclopenthiazide: 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
Using a loop diuretic with a thiazide-type diuretic gives synergistic diuresis through sequential nephron blockade. This increases the risk of hypokalemia, hyponatremia, hypomagnesemia, dehydration and hypotension.
What this interaction means in plain words
Bumetanide and Cyclopenthiazide 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
Additive sodium and potassium excretion through blockade at the loop of Henle and distal convoluted tubule.
What to do
Monitor electrolytes, renal function, weight and blood pressure after starting. Supplement potassium or magnesium as needed and lower doses if volume depletion develops.
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?
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Other interactions of Bumetanide
Frequently asked questions
Can I take Bumetanide with Cyclopenthiazide?
MediHelp rates the interaction as moderate. Bumetanide and Cyclopenthiazide 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. Using a loop diuretic with a thiazide-type diuretic gives synergistic diuresis through sequential nephron blockade. This increases the risk of hypokalemia, hyponatremia, hypomagnesemia, dehydration and hypotension.
How serious is the interaction between Bumetanide and Cyclopenthiazide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor electrolytes, renal function, weight and blood pressure after starting. Supplement potassium or magnesium as needed and lower doses if volume depletion develops.
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.
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