Comparative Pharmacology
Head-to-head clinical analysis: ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE versus SALURON.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE versus SALURON.
ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE vs SALURON
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Enalapril is an angiotensin-converting enzyme (ACE) inhibitor that inhibits the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone secretion, leading to decreased blood pressure. Hydrochlorothiazide is a thiazide diuretic that inhibits the sodium-chloride symporter in the distal convoluted tubule, increasing sodium, chloride, and water excretion, and reducing peripheral vascular resistance.
Saluron (hydroflumethiazide) is a thiazide diuretic that inhibits the sodium-chloride symporter (NCC) in the distal convoluted tubule of the nephron, increasing excretion of sodium, chloride, and water. It also reduces peripheral vascular resistance through direct vasodilatory effects.
Oral: Initially enalapril 5 mg and HCTZ 12.5 mg once daily; titrate to maximum enalapril 20 mg / HCTZ 25 mg once daily.
Initial: 50-100 mg orally once daily; maintenance: 50-200 mg orally once daily or in divided doses.
None Documented
None Documented
Enalaprilat: terminal 11 hours (multiple doses), prolonged in renal impairment (creatinine clearance <30 mL/min: 30-40 h). Hydrochlorothiazide: terminal 6-15 hours (mean 10 h), prolonged in renal impairment.
Terminal elimination half-life is 8-12 hours in adults with normal renal function; prolonged in renal impairment (up to 24-36 hours with creatinine clearance <30 mL/min).
Enalapril: renal 60-80% (40-60% as enalaprilat, 20-40% as metabolites); fecal 20-40%. Hydrochlorothiazide: renal 95% (unchanged).
Primarily renal (≥95%) via glomerular filtration and tubular secretion; approximately 70% as unchanged drug, 25% as metabolites. Biliary/fecal excretion accounts for <5%.
Category A/B
Category C
Thiazide Diuretic
Thiazide Diuretic