Thiazide-like diuretic
Who should not take Chlorthalidone
A contraindication is a condition under which Chlorthalidone (Chlorthalidone) should not be taken because the risk outweighs the benefit. Chlorthalidone has both absolute contraindications (do not use) and relative cautions (use only after careful review). This page summarises both at the 15mg, 25mg, 50mg dosing range.
Absolute contraindications
According to the prescribing information for Chlorthalidone, 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 Chlorthalidone 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. Chlorthalidone blocks the sodium-chloride symporter in the distal convoluted tubule of the kidney, reducing sodium reabsorption and producing modest diuresis.
Frequently asked questions
Can someone with heart disease take Chlorthalidone? ▾
Some forms of heart disease are absolute contraindications for Chlorthalidone, particularly with nitrate use or recent cardiovascular events. Stable, well-controlled cardiovascular disease may allow Chlorthalidone use under specialist supervision. The prescribing information for Chlorthalidone should be reviewed.
Is Chlorthalidone safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Chlorthalidone at adjusted lower 15mg, 25mg, 50mg 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 Chlorthalidone
More on Chlorthalidone
- With alcoholChlorthalidone and alcohol — is it safe to drink?
- With foodShould Chlorthalidone be taken with food?
- Side effectsChlorthalidone side effects: common, rare and warning signs
- Dosage guideChlorthalidone dosage guide: how much to take and when
- OnsetHow fast does Chlorthalidone start working?
- DurationHow long does Chlorthalidone last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.