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Drug interactions

Furosemide + Hydrochlorothiazide-lisinopril

Severity: Moderate

Furosemide and Hydrochlorothiazide-lisinopril: 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

Combining a loop diuretic with a thiazide produces strong sequential nephron blockade, with marked diuresis, volume depletion, hypotension and electrolyte loss. Hypokalemia, hyponatremia and hypomagnesemia can occur, and the ACE inhibitor adds to the risk of renal impairment.

What this interaction means in plain words

Furosemide and Hydrochlorothiazide-lisinopril 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.

Furosemide belongs to Cardiovascular; Hydrochlorothiazide-lisinopril belongs to Cardiovascular.

Evidence level: High

Why it happens

Additive natriuresis and kaliuresis from blocking sodium reabsorption at different nephron sites.

What to do

Monitor electrolytes, renal function, weight and blood pressure, especially after initiation or dose changes. Reduce diuretic doses if volume depletion develops.

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 Furosemide with Hydrochlorothiazide-lisinopril?

MediHelp rates the interaction as moderate. Furosemide and Hydrochlorothiazide-lisinopril 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. Combining a loop diuretic with a thiazide produces strong sequential nephron blockade, with marked diuresis, volume depletion, hypotension and electrolyte loss. Hypokalemia, hyponatremia and hypomagnesemia can occur, and the ACE inhibitor adds to the risk of renal impairment.

How serious is the interaction between Furosemide and Hydrochlorothiazide-lisinopril?

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 electrolytes, renal function, weight and blood pressure, especially after initiation or dose changes. Reduce diuretic doses if volume depletion develops.

What other medicines interact with Hydrochlorothiazide-lisinopril?

MediHelp also lists interactions of Hydrochlorothiazide-lisinopril with, for example, Dofetilide, Sacubitril / valsartan, Amifostine. The full list is on the Hydrochlorothiazide-lisinopril page.

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