Drug interactions
Dobutamine + Hydrochlorothiazide-valsartan
Severity: Moderate
Dobutamine and Hydrochlorothiazide-valsartan: 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 hydrochlorothiazide causes renal potassium loss. Together they can lower serum potassium and increase the risk of arrhythmias in patients with heart disease. Valsartan's potassium-retaining effect gives only partial offset.
What this interaction means in plain words
Dobutamine and Hydrochlorothiazide-valsartan 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 belongs to Cardiovascular; Hydrochlorothiazide-valsartan belongs to Cardiovascular.
Why it happens
Beta-adrenergic stimulated cellular potassium uptake adds to thiazide-induced urinary potassium loss.
What to do
Monitor serum potassium and ECG during dobutamine infusion, and replace potassium to maintain normal levels.
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 Hydrochlorothiazide-valsartan
- Aliskiren + Hydrochlorothiazide-valsartan Contraindicated
- Dofetilide + Hydrochlorothiazide-valsartan Contraindicated
- Hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-valsartan Major
- Amifostine + Hydrochlorothiazide-valsartan Major
- Amiloride + Hydrochlorothiazide-valsartan Major
Other interactions of Dobutamine
Frequently asked questions
Can I take Dobutamine with Hydrochlorothiazide-valsartan?
MediHelp rates the interaction as moderate. Dobutamine and Hydrochlorothiazide-valsartan 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 hydrochlorothiazide causes renal potassium loss. Together they can lower serum potassium and increase the risk of arrhythmias in patients with heart disease. Valsartan's potassium-retaining effect gives only partial offset.
How serious is the interaction between Dobutamine and Hydrochlorothiazide-valsartan?
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 ECG during dobutamine infusion, and replace potassium to maintain normal levels.
What other medicines interact with Hydrochlorothiazide-valsartan?
MediHelp also lists interactions of Hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-valsartan page.
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