Comparative Pharmacology
Head-to-head clinical analysis: AZILSARTAN MEDOXOMIL AND CHLORTHALIDONE versus MICROZIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AZILSARTAN MEDOXOMIL AND CHLORTHALIDONE versus MICROZIDE.
AZILSARTAN MEDOXOMIL AND CHLORTHALIDONE vs MICROZIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Azilsartan medoxomil is an angiotensin II receptor antagonist that selectively blocks the binding of angiotensin II to AT1 receptors, reducing vasoconstriction and aldosterone secretion. Chlorthalidone is a thiazide-like diuretic that inhibits sodium reabsorption in the distal convoluted tubule, increasing sodium and water excretion.
Inhibits the sodium-chloride symporter (NCC) in the distal convoluted tubule of the nephron, reducing reabsorption of sodium and chloride, leading to increased excretion of water and electrolytes, and a decrease in blood volume and peripheral vascular resistance.
Azilsartan medoxomil 40 mg/chlorthalidone 12.5 mg or 25 mg orally once daily; maximum dose: azilsartan medoxomil 40 mg/chlorthalidone 25 mg per day.
12.5-25 mg orally once daily for hypertension; 25-100 mg orally once daily for edema.
None Documented
None Documented
Azilsartan medoxomil: Terminal half-life approximately 11 hours. Chlorthalidone: Long terminal half-life of 40-60 hours (mean 47 hours), allowing once-daily dosing.
Terminal elimination half-life: 8-12 hours (prolonged in renal impairment; up to 30 hours in severe insufficiency).
Azilsartan medoxomil: Approximately 55% of the dose is excreted in feces and 42% in urine, mostly as metabolites. Chlorthalidone: Primarily excreted unchanged in urine (50-70%) via tubular secretion; approximately 30% is excreted in feces via biliary elimination.
Primarily renal (approximately 70% unchanged drug; remainder as metabolites and conjugates); minimal biliary/fecal (<10%).
Category C
Category C
Thiazide Diuretic
Thiazide Diuretic