Drug interactions
Dobutamine + Hydrochlorothiazide
Severity: Moderate
Dobutamine and Hydrochlorothiazide: 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 produce clinically significant hypokalaemia with arrhythmia risk.
What this interaction means in plain words
Dobutamine and Hydrochlorothiazide 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 belongs to Cardiovascular.
Why it happens
Additive lowering of serum potassium through renal loss and beta-2 mediated cellular uptake.
What to do
Monitor serum potassium and ECG during dobutamine infusion and replace potassium as required.
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
Other interactions of Dobutamine
Frequently asked questions
Can I take Dobutamine with Hydrochlorothiazide?
MediHelp rates the interaction as moderate. Dobutamine and Hydrochlorothiazide 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 produce clinically significant hypokalaemia with arrhythmia risk.
How serious is the interaction between Dobutamine and Hydrochlorothiazide?
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 as required.
What other medicines interact with Hydrochlorothiazide?
MediHelp also lists interactions of Hydrochlorothiazide with, for example, Dofetilide, Amifostine, Amiodarone. The full list is on the Hydrochlorothiazide page.
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