Drug interactions
Atenolol-chlorthalidone + Furosemide
Severity: Moderate
Atenolol-chlorthalidone and Furosemide: 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 combined with chlorthalidone produces strong sequential nephron blockade, giving greater diuresis with a high risk of hypokalemia, hyponatremia, volume depletion and hypotension. The effect is useful in resistant edema but requires care.
What this interaction means in plain words
Atenolol-chlorthalidone and Furosemide 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.
Atenolol-chlorthalidone belongs to Cardiovascular; Furosemide belongs to Cardiovascular.
Why it happens
Additive natriuresis and kaliuresis from loop and thiazide-like diuretic action at different nephron sites.
What to do
Monitor electrolytes, renal function, weight and blood pressure, especially during initiation. Adjust doses or add potassium replacement as required.
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 Atenolol-chlorthalidone
Other interactions of Furosemide
- Amifostine + Furosemide Major
- Amikacin + Furosemide Major
- Carbenoxolone + Furosemide Major
- Cephaloridine + Furosemide Major
- Cisplatin + Furosemide Major
- Digoxin + Furosemide Major
Frequently asked questions
Can I take Atenolol-chlorthalidone with Furosemide?
MediHelp rates the interaction as moderate. Atenolol-chlorthalidone and Furosemide 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 combined with chlorthalidone produces strong sequential nephron blockade, giving greater diuresis with a high risk of hypokalemia, hyponatremia, volume depletion and hypotension. The effect is useful in resistant edema but requires care.
How serious is the interaction between Atenolol-chlorthalidone and Furosemide?
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 during initiation. Adjust doses or add potassium replacement as required.
What other medicines interact with Atenolol-chlorthalidone?
MediHelp also lists interactions of Atenolol-chlorthalidone with, for example, Acebutolol, Aldesleukin, Amiodarone. The full list is on the Atenolol-chlorthalidone page.
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