Drug interactions
Hydrochlorothiazide-telmisartan + Norepinephrine
Severity: Moderate
Hydrochlorothiazide-telmisartan and Norepinephrine: 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
Hypokalemia from hydrochlorothiazide may increase the risk of arrhythmias in patients receiving norepinephrine infusion. Norepinephrine can also shift potassium into cells to a small degree. This is mainly relevant in critically ill patients.
What this interaction means in plain words
Hydrochlorothiazide-telmisartan and Norepinephrine 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
Thiazide potassium wasting combined with catecholamine-driven potassium shift predisposes to arrhythmia.
What to do
Monitor serum potassium and ECG in patients on norepinephrine and correct hypokalemia. Hold diuretic therapy if clinically appropriate during acute use.
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-telmisartan
- Aliskiren + Hydrochlorothiazide-telmisartan Contraindicated
- Dofetilide + Hydrochlorothiazide-telmisartan Contraindicated
- Hydrochlorothiazide-telmisartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-telmisartan Major
- Amifostine + Hydrochlorothiazide-telmisartan Major
- Amiloride + Hydrochlorothiazide-telmisartan Major
Frequently asked questions
Can I take Hydrochlorothiazide-telmisartan with Norepinephrine?
MediHelp rates the interaction as moderate. Hydrochlorothiazide-telmisartan and Norepinephrine 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. Hypokalemia from hydrochlorothiazide may increase the risk of arrhythmias in patients receiving norepinephrine infusion. Norepinephrine can also shift potassium into cells to a small degree. This is mainly relevant in critically ill patients.
How serious is the interaction between Hydrochlorothiazide-telmisartan and Norepinephrine?
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 in patients on norepinephrine and correct hypokalemia. Hold diuretic therapy if clinically appropriate during acute use.
What other medicines interact with Hydrochlorothiazide-telmisartan?
MediHelp also lists interactions of Hydrochlorothiazide-telmisartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-telmisartan page.
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