Comparative Pharmacology
Head-to-head clinical analysis: CHLOROTHIAZIDE versus FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLOROTHIAZIDE versus FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE.
CHLOROTHIAZIDE vs FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE
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.
Fosinopril is an ACE inhibitor that inhibits the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone secretion. Hydrochlorothiazide is a thiazide diuretic that inhibits the sodium-chloride symporter in the distal convoluted tubule, increasing excretion of sodium and water.
500 mg to 1000 mg orally or intravenously once or twice daily.
1 tablet (fosinopril 10 mg/hydrochlorothiazide 12.5 mg or fosinopril 20 mg/hydrochlorothiazide 12.5 mg) orally once daily. Maximum dose: fosinopril 80 mg/hydrochlorothiazide 50 mg per day.
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
Fosinoprilat: 11.5 h (terminal); Hydrochlorothiazide: 6-15 h (biphasic, terminal phase 10-15 h).
Renal: ~95% (tubular secretion); Fecal: <5%
Fosinopril: 45% renal, 55% biliary/fecal; Hydrochlorothiazide: >95% renal (unchanged).
Category C
Category A/B
Thiazide Diuretic
Thiazide Diuretic
Chlorothiazide + Digitoxin
"The risk or severity of adverse effects can be increased when Chlorothiazide is combined with Digitoxin."