Comparative Pharmacology
Head-to-head clinical analysis: AMLODIPINE MALEATE BENAZEPRIL HYDROCHLORIDE versus MONOPRIL HCT.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMLODIPINE MALEATE BENAZEPRIL HYDROCHLORIDE versus MONOPRIL HCT.
AMLODIPINE MALEATE; BENAZEPRIL HYDROCHLORIDE vs MONOPRIL-HCT
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Amlodipine is a dihydropyridine calcium channel blocker that inhibits the influx of calcium ions into vascular smooth muscle and cardiac muscle, leading to vasodilation and reduced peripheral vascular resistance. Benazepril is an angiotensin-converting enzyme (ACE) inhibitor that prevents the conversion of angiotensin I to angiotensin II, resulting in vasodilation and reduced aldosterone secretion.
Fosinopril is an angiotensin-converting enzyme (ACE) inhibitor that inhibits the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone secretion; hydrochlorothiazide is a thiazide diuretic that inhibits sodium and chloride reabsorption in the distal convoluted tubule, increasing electrolyte and water excretion.
Initial: 2.5-5 mg amlodipine / 10-20 mg benazepril orally once daily, titrated to 10/40 mg once daily based on response.
1 tablet (10-20 mg fosinopril / 12.5-25 mg hydrochlorothiazide) orally once daily; maximum dose 80 mg fosinopril / 50 mg hydrochlorothiazide per day.
None Documented
None Documented
Amlodipine: 30-50 h (terminal), allowing once-daily dosing; benazeprilat: 10-11 h (terminal), effective for 24 h.
Fosinoprilat: 11.5-12 h (terminal half-life extended in renal and hepatic impairment); hydrochlorothiazide: 5.6-14.8 h (varies with renal function).
Renal: Amlodipine 10% unchanged, benazeprilat (active metabolite) 50-60% in urine; biliary/fecal: amlodipine 20-25% as metabolites, benazeprilat 10-20% in feces.
Fosinopril: renal (44%), biliary (46%); hydrochlorothiazide: renal (>95% as unchanged drug).
Category D/X
Category C
ACE Inhibitor
ACE Inhibitor/Diuretic Antihypertensive