Comparative Pharmacology
Head-to-head clinical analysis: CHLOROTHIAZIDE versus ENDURON.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLOROTHIAZIDE versus ENDURON.
CHLOROTHIAZIDE vs ENDURON
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.
Thiazide diuretic that inhibits the sodium-chloride symporter in the distal convoluted tubule of the nephron, reducing sodium and chloride reabsorption and increasing water excretion.
500 mg to 1000 mg orally or intravenously once or twice daily.
Oral, 2.5–5 mg once daily. Maximum dose 10 mg/day.
None Documented
None Documented
Terminal half-life: 45–120 minutes (prolonged in renal impairment); clinical context: short duration requires frequent dosing
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 elimination half-life: 24-48 hours (mean 36 hours); prolonged in renal impairment or heart failure, allowing once-daily dosing.
Renal: ~95% (tubular secretion); Fecal: <5%
Primarily renal (approximately 50-70% as unchanged drug); biliary/fecal (15-30%); dose adjustment required in renal impairment (CrCl <30 mL/min).
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."