Comparative Pharmacology
Head-to-head clinical analysis: CHLOROTHIAZIDE versus MICROZIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLOROTHIAZIDE versus MICROZIDE.
CHLOROTHIAZIDE vs MICROZIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Chlorothiazide inhibits the Na+-Cl- symporter in the distal convoluted tubule, reducing sodium and chloride reabsorption and promoting diuresis. It also causes vasodilation by reducing peripheral vascular resistance.
Inhibits the sodium-chloride symporter (NCC) in the distal convoluted tubule of the nephron, reducing reabsorption of sodium and chloride, leading to increased excretion of water and electrolytes, and a decrease in blood volume and peripheral vascular resistance.
500 mg to 1000 mg orally or intravenously once or twice daily.
12.5-25 mg orally once daily for hypertension; 25-100 mg orally once daily for edema.
None Documented
None Documented
Clinical Note
moderateHydrochlorothiazide + Digoxin
"The risk or severity of adverse effects can be increased when Hydrochlorothiazide is combined with Digoxin."
Clinical Note
moderateChlorothiazide + Digoxin
"The risk or severity of adverse effects can be increased when Chlorothiazide is combined with Digoxin."
Clinical Note
moderateHydrochlorothiazide + Digitoxin
"The risk or severity of adverse effects can be increased when Hydrochlorothiazide is combined with Digitoxin."
Clinical Note
moderateTerminal half-life: 45–120 minutes (prolonged in renal impairment); clinical context: short duration requires frequent dosing
Terminal elimination half-life: 8-12 hours (prolonged in renal impairment; up to 30 hours in severe insufficiency).
Renal: ~95% (tubular secretion); Fecal: <5%
Primarily renal (approximately 70% unchanged drug; remainder as metabolites and conjugates); minimal biliary/fecal (<10%).
Category C
Category C
Thiazide Diuretic
Thiazide Diuretic
Chlorothiazide + Digitoxin
"The risk or severity of adverse effects can be increased when Chlorothiazide is combined with Digitoxin."