Drug interactions
Bendroflumethiazide + Isoproterenol
Severity: Moderate
Bendroflumethiazide and Isoproterenol: 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
Both drugs can lower serum potassium, and thiazide-induced hypokalemia may increase the arrhythmia risk associated with beta-agonist stimulation. The effect is most relevant with high-dose or prolonged isoproterenol use or in patients with cardiac disease.
What this interaction means in plain words
Bendroflumethiazide and Isoproterenol 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 hypokalemia from renal potassium loss (thiazide) and beta-2 mediated cellular potassium uptake.
What to do
Monitor serum potassium and magnesium and correct deficits. Monitor ECG in patients with cardiac disease.
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 Isoproterenol
Frequently asked questions
Can I take Bendroflumethiazide with Isoproterenol?
MediHelp rates the interaction as moderate. Bendroflumethiazide and Isoproterenol 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. Both drugs can lower serum potassium, and thiazide-induced hypokalemia may increase the arrhythmia risk associated with beta-agonist stimulation. The effect is most relevant with high-dose or prolonged isoproterenol use or in patients with cardiac disease.
How serious is the interaction between Bendroflumethiazide and Isoproterenol?
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 and correct deficits. Monitor ECG in patients with cardiac disease.
What other medicines interact with Isoproterenol?
MediHelp also lists interactions of Isoproterenol with, for example, Adrenaline-articaine, Bisoprolol, Budesonide-formoterol. The full list is on the Isoproterenol page.
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