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Drug interactions

Ethacrynic acid + Telmisartan-amlodipine

Severity: Moderate

Ethacrynic acid and Telmisartan-amlodipine: 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

Ethacrynic acid is a potent loop diuretic that adds to the blood pressure lowering of telmisartan-amlodipine and can cause volume depletion. Combined use raises the risk of hypotension and acute kidney injury, and potassium changes can go either way.

What this interaction means in plain words

Ethacrynic acid and Telmisartan-amlodipine 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.

Ethacrynic acid belongs to Cardiovascular; Telmisartan-amlodipine belongs to Cardiovascular.

Evidence level: High

Why it happens

Additive hypotensive effects, with loop diuretic volume depletion reducing renal perfusion in the presence of ARB-blunted efferent arteriolar tone, and opposing effects on potassium.

What to do

Monitor blood pressure, renal function and serum electrolytes after initiation and dose changes. Consider reducing the diuretic dose in volume-depleted patients.

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 Ethacrynic acid with Telmisartan-amlodipine?

MediHelp rates the interaction as moderate. Ethacrynic acid and Telmisartan-amlodipine 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. Ethacrynic acid is a potent loop diuretic that adds to the blood pressure lowering of telmisartan-amlodipine and can cause volume depletion. Combined use raises the risk of hypotension and acute kidney injury, and potassium changes can go either way.

How serious is the interaction between Ethacrynic acid and Telmisartan-amlodipine?

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 blood pressure, renal function and serum electrolytes after initiation and dose changes. Consider reducing the diuretic dose in volume-depleted patients.

What other medicines interact with Telmisartan-amlodipine?

MediHelp also lists interactions of Telmisartan-amlodipine with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Telmisartan-amlodipine page.

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