Loop diuretic
Who should not take Furosemide
A contraindication is a condition under which Furosemide (Furosemide) should not be taken because the risk outweighs the benefit. Furosemide has both absolute contraindications (do not use) and relative cautions (use only after careful review). This page summarises both at the 20mg, 40mg, 100mg dosing range.
Absolute contraindications
According to the prescribing information for Furosemide, absolute contraindications typically include severe allergic reactions to the active ingredient or excipients, severe hepatic or renal impairment, certain cardiovascular conditions, and concurrent use of specific interacting medications. The exact list depends on the molecule and is detailed in the official label.
Relative cautions
Relative cautions are situations where Furosemide can be used but with extra monitoring, dose reduction or alternative considered. These often include mild-to-moderate organ impairment, age extremes, multiple comorbidities, and complex medication regimens. Furosemide acts on the thick ascending limb of the loop of Henle in the kidney, where it inhibits the Na+/K+/2Cl- co-transporter (NKCC2).
Frequently asked questions
Can someone with heart disease take Furosemide? ▾
Some forms of heart disease are absolute contraindications for Furosemide, particularly with nitrate use or recent cardiovascular events. Stable, well-controlled cardiovascular disease may allow Furosemide use under specialist supervision. The prescribing information for Furosemide should be reviewed.
Is Furosemide safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Furosemide at adjusted lower 20mg, 40mg, 100mg doses. Severe kidney failure is often a contraindication or requires substantial dose reduction. The prescriber decides based on lab results and concurrent medications.
Products containing Furosemide
More on Furosemide
- With alcoholFurosemide and alcohol — is it safe to drink?
- With foodShould Furosemide be taken with food?
- Side effectsFurosemide side effects: common, rare and warning signs
- Dosage guideFurosemide dosage guide: how much to take and when
- OnsetHow fast does Furosemide start working?
- DurationHow long does Furosemide last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.