Comparative Pharmacology
Head-to-head clinical analysis: ATACAND HCT versus FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ATACAND HCT versus FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE.
ATACAND HCT vs FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
ATACAND HCT is a combination of candesartan, an angiotensin II receptor blocker (ARB), and hydrochlorothiazide, a thiazide diuretic. Candesartan blocks the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selectively antagonizing the AT1 receptor, leading to vasodilation and reduced blood pressure. Hydrochlorothiazide inhibits the sodium-chloride symporter in the distal convoluted tubule of the nephron, increasing sodium, chloride, and water excretion, thereby reducing plasma volume and blood pressure.
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.
One tablet orally once daily. Initial dose: 16 mg candesartan/12.5 mg hydrochlorothiazide. Titrate to maximum 32 mg candesartan/25 mg hydrochlorothiazide once 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
Candesartan: ~9 hours (terminal). Hydrochlorothiazide: 6-15 hours (terminal, mean ~10 hours).
Fosinoprilat: 11.5 h (terminal); Hydrochlorothiazide: 6-15 h (biphasic, terminal phase 10-15 h).
Candesartan: ~33% renal, ~67% biliary/fecal. Hydrochlorothiazide: >95% renal.
Fosinopril: 45% renal, 55% biliary/fecal; Hydrochlorothiazide: >95% renal (unchanged).
Category C
Category A/B
Angiotensin II Receptor Blocker / Thiazide Diuretic
Thiazide Diuretic