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Drug interactions

Amiodarone + Hydrochlorothiazide-olmesartan

Severity: Moderate

Amiodarone and Hydrochlorothiazide-olmesartan: 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

Amiodarone may theoretically raise hydrochlorothiazide levels through competition for renal tubular secretion, but the clinically relevant concern is that thiazide-induced hypokalemia or hypomagnesemia increases the risk of QT prolongation and torsades de pointes with amiodarone.

What this interaction means in plain words

Amiodarone and Hydrochlorothiazide-olmesartan 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.

Amiodarone belongs to Cardiovascular; Hydrochlorothiazide-olmesartan belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Thiazide-induced hypokalemia and hypomagnesemia potentiate the QT-prolonging effect of amiodarone.

What to do

Check and correct potassium and magnesium before and during therapy. Monitor ECG for QT prolongation.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Amiodarone with Hydrochlorothiazide-olmesartan?

MediHelp rates the interaction as moderate. Amiodarone and Hydrochlorothiazide-olmesartan 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. Amiodarone may theoretically raise hydrochlorothiazide levels through competition for renal tubular secretion, but the clinically relevant concern is that thiazide-induced hypokalemia or hypomagnesemia increases the risk of QT prolongation and torsades de pointes with amiodarone.

How serious is the interaction between Amiodarone and Hydrochlorothiazide-olmesartan?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check and correct potassium and magnesium before and during therapy. Monitor ECG for QT prolongation.

What other medicines interact with Hydrochlorothiazide-olmesartan?

MediHelp also lists interactions of Hydrochlorothiazide-olmesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-olmesartan page.

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