Who should not take Microzide
A contraindication is a condition under which Microzide (Hydrochlorothiazide) should not be taken because the risk outweighs the benefit. Microzide has both absolute contraindications (do not use) and relative cautions (use only after careful review). This page summarises both at the 12.5mg, 25mg, 50mg dosing range.
Absolute contraindications
According to the prescribing information for Hydrochlorothiazide, 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 Microzide 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. Hydrochlorothiazide 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 Microzide? ▾
Some forms of heart disease are absolute contraindications for Microzide, particularly with nitrate use or recent cardiovascular events. Stable, well-controlled cardiovascular disease may allow Microzide use under specialist supervision. The prescribing information for Hydrochlorothiazide should be reviewed.
Is Microzide safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Microzide at adjusted lower 12.5mg, 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.
More on Microzide
- With alcoholMicrozide and alcohol — is it safe to drink?
- With foodShould Microzide be taken with food?
- Side effectsMicrozide side effects: common, rare and warning signs
- Dosage guideMicrozide dosage guide: how much to take and when
- OnsetHow fast does Microzide start working?
- DurationHow long does Microzide last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.