Drug interactions
Bendroflumethiazide + Dobutamine
Severity: Moderate
Bendroflumethiazide and Dobutamine: 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
Dobutamine can shift potassium into cells through beta-2 stimulation, and thiazide diuretics cause renal potassium loss. Together they may produce clinically relevant hypokalemia, which raises the risk of arrhythmias, particularly in patients with heart disease.
What this interaction means in plain words
Bendroflumethiazide and Dobutamine 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 lowering of serum potassium via beta-2 mediated cellular uptake (dobutamine) and increased renal potassium excretion (thiazide).
What to do
Monitor serum potassium and magnesium during dobutamine infusion in patients taking the thiazide. Replace potassium as needed and monitor the ECG for arrhythmias.
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 Dobutamine
Frequently asked questions
Can I take Bendroflumethiazide with Dobutamine?
MediHelp rates the interaction as moderate. Bendroflumethiazide and Dobutamine 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. Dobutamine can shift potassium into cells through beta-2 stimulation, and thiazide diuretics cause renal potassium loss. Together they may produce clinically relevant hypokalemia, which raises the risk of arrhythmias, particularly in patients with heart disease.
How serious is the interaction between Bendroflumethiazide and Dobutamine?
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 serum potassium and magnesium during dobutamine infusion in patients taking the thiazide. Replace potassium as needed and monitor the ECG for arrhythmias.
What other medicines interact with Dobutamine?
MediHelp also lists interactions of Dobutamine with, for example, Budesonide-formoterol, Dihydroergotamine intranasal, Dihydroergotamine. The full list is on the Dobutamine page.
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