Comparative Pharmacology
Head-to-head clinical analysis: ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE versus HYDROPANE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE versus HYDROPANE.
ENALAPRIL MALEATE AND HYDROCHLOROTHIAZIDE vs HYDROPANE
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.
Thiazide diuretic; inhibits sodium chloride cotransporter in distal convoluted tubule, increasing excretion of sodium and water, and reducing plasma volume.
Oral: Initially enalapril 5 mg and HCTZ 12.5 mg once daily; titrate to maximum enalapril 20 mg / HCTZ 25 mg once daily.
50–100 mg orally once daily, maximum 200 mg daily
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 approximately 8-15 hours in patients with normal renal function; may be prolonged in renal impairment.
Enalapril: renal 60-80% (40-60% as enalaprilat, 20-40% as metabolites); fecal 20-40%. Hydrochlorothiazide: renal 95% (unchanged).
Renal (approximately 50% as unchanged drug) and hepatic metabolism to inactive metabolites; fecal elimination accounts for about 10%.
Category A/B
Category C
Thiazide Diuretic
Thiazide Diuretic