Drug interactions
Furosemide + Potassium chloride
Severity: Moderate
Furosemide and Potassium chloride: 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
Furosemide increases urinary potassium excretion and potassium chloride is often given to prevent hypokalemia. Excessive supplementation or reduced kidney function can result in hyperkalemia, while too little leaves hypokalemia untreated.
What this interaction means in plain words
Furosemide and Potassium chloride 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; Potassium chloride belongs to Gastrointestinal Tract.
Why it happens
Opposing effects on serum potassium: loop diuretic kaliuresis versus potassium load.
What to do
Monitor serum potassium and renal function regularly, and adjust the potassium chloride dose to maintain a normal level.
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 Furosemide
- Amifostine + Furosemide Major
- Amikacin + Furosemide Major
- Carbenoxolone + Furosemide Major
- Cephaloridine + Furosemide Major
- Cisplatin + Furosemide Major
- Digoxin + Furosemide Major
Other interactions of Potassium chloride
Frequently asked questions
Can I take Furosemide with Potassium chloride?
MediHelp rates the interaction as moderate. Furosemide and Potassium chloride 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 increases urinary potassium excretion and potassium chloride is often given to prevent hypokalemia. Excessive supplementation or reduced kidney function can result in hyperkalemia, while too little leaves hypokalemia untreated.
How serious is the interaction between Furosemide and Potassium chloride?
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 renal function regularly, and adjust the potassium chloride dose to maintain a normal level.
What other medicines interact with Furosemide?
MediHelp also lists interactions of Furosemide with, for example, Amifostine, Amikacin, Carbenoxolone. The full list is on the Furosemide page.
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