Comparative Pharmacology
Head-to-head clinical analysis: CAPOZIDE 50 15 versus ZESTORETIC.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CAPOZIDE 50 15 versus ZESTORETIC.
CAPOZIDE 50/15 vs ZESTORETIC
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
CAPOZIDE 50/15 combines captopril (angiotensin-converting enzyme inhibitor) and hydrochlorothiazide (thiazide diuretic). Captopril inhibits ACE, reducing angiotensin II formation, decreasing aldosterone secretion, and lowering blood pressure. Hydrochlorothiazide increases sodium and water excretion by inhibiting the Na+/Cl- cotransporter in distal convoluted tubules.
Combination of lisinopril (ACE inhibitor) and hydrochlorothiazide (thiazide diuretic). Lisinopril inhibits angiotensin-converting enzyme, reducing angiotensin II formation, decreasing vasoconstriction and aldosterone secretion. Hydrochlorothiazide inhibits sodium reabsorption in distal convoluted tubule, increasing diuresis and reducing plasma volume.
Oral, 1 tablet (captopril 50 mg / hydrochlorothiazide 15 mg) once daily. May increase to 2 tablets daily in divided doses if needed.
Zestoretic (lisinopril/hydrochlorothiazide) is available in fixed-dose combinations. Typical adult dose: 10 mg/12.5 mg, 20 mg/12.5 mg, or 20 mg/25 mg orally once daily. Maximum dose: lisinopril 80 mg/day, hydrochlorothiazide 50 mg/day.
None Documented
None Documented
Captopril: terminal half-life ~2 hours (in patients with normal renal function; prolonged in renal impairment to 21-36 hours). Hydrochlorothiazide: half-life 6-15 hours (mean ~9 hours; prolonged in renal impairment). Clinical context: dosing interval affected by renal function.
Lisinopril: terminal half-life approximately 12 hours (accumulation half-life 13.8 hours in patients with normal renal function). Hydrochlorothiazide: terminal half-life 5.6–14.8 hours (mean 9.6 hours).
Captopril: renal excretion of unchanged drug and metabolites, primarily in urine (60-75%), with ~20% as unchanged captopril; small amount in feces (5-10%). Hydrochlorothiazide: renal excretion (95% unchanged), <5% via biliary/fecal.
Lisinopril is excreted unchanged in urine; 100% renal elimination. Hydrochlorothiazide is excreted primarily by the kidney (≥95% as unchanged drug) via tubular secretion.
Category C
Category C
ACE Inhibitor and Diuretic Combination
ACE Inhibitor + Diuretic