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Drug interactions

Amlodipine-hydrochlorothiazide-valsartan + Sotalol

Severity: Major

Amlodipine-hydrochlorothiazide-valsartan and Sotalol: major interaction.

Last updated Sources: UK SmPC

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

Hydrochlorothiazide can cause hypokalemia and hypomagnesemia, which markedly increases the risk of sotalol-induced QT prolongation and torsades de pointes. Additive hypotension and bradycardia may also occur with amlodipine and valsartan.

What this interaction means in plain words

Amlodipine-hydrochlorothiazide-valsartan and Sotalol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Amlodipine-hydrochlorothiazide-valsartan belongs to Cardiovascular; Sotalol belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Thiazide-induced electrolyte depletion potentiates sotalol QT prolongation, plus additive hemodynamic effects of beta blockade and vasodilation.

What to do

Check and correct potassium and magnesium before and during therapy, and monitor ECG and QTc. Monitor heart rate and blood pressure, and consider an alternative diuretic strategy if electrolytes are unstable.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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

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References

Frequently asked questions

Can I take Amlodipine-hydrochlorothiazide-valsartan with Sotalol?

MediHelp rates the interaction as major. Amlodipine-hydrochlorothiazide-valsartan and Sotalol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Hydrochlorothiazide can cause hypokalemia and hypomagnesemia, which markedly increases the risk of sotalol-induced QT prolongation and torsades de pointes. Additive hypotension and bradycardia may also occur with amlodipine and valsartan.

How serious is the interaction between Amlodipine-hydrochlorothiazide-valsartan and Sotalol?

MediHelp rates it major, 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, and monitor ECG and QTc. Monitor heart rate and blood pressure, and consider an alternative diuretic strategy if electrolytes are unstable.

What other medicines interact with Amlodipine-hydrochlorothiazide-valsartan?

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

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