Comparative Pharmacology
Head-to-head clinical analysis: COREG CR versus PROPRANOLOL HYDROCHLORIDE AND HYDROCHLOROTHIAZIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: COREG CR versus PROPRANOLOL HYDROCHLORIDE AND HYDROCHLOROTHIAZIDE.
COREG CR vs PROPRANOLOL HYDROCHLORIDE AND HYDROCHLOROTHIAZIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Nonselective beta-1, beta-2, and alpha-1 adrenergic receptor antagonist; no intrinsic sympathomimetic activity; reduces myocardial oxygen demand, decreases peripheral vascular resistance, and suppresses renin-angiotensin-aldosterone system.
Propranolol is a nonselective beta-adrenergic receptor antagonist that blocks beta-1 and beta-2 receptors, decreasing heart rate, myocardial contractility, and blood pressure. Hydrochlorothiazide is a thiazide diuretic that inhibits the sodium-chloride symporter in the distal convoluted tubule, increasing excretion of sodium and water.
Initial dose 20 mg orally once daily for patients with heart failure; may increase at 2-week intervals to a target dose of 80 mg once daily.
Oral: 1 tablet (propranolol 40 mg / hydrochlorothiazide 25 mg) twice daily or as needed to control blood pressure; maximum propranolol 320 mg/day.
None Documented
None Documented
Terminal elimination half-life is 7-10 hours; due to controlled-release formulation, effective half-life is prolonged to support once-daily dosing
Propranolol: 3-6 hours (terminal) with significant interindividual variability; prolonged in hepatic impairment (up to 11 hours). Hydrochlorothiazide: 6-15 hours (terminal); prolonged in renal impairment (creatinine clearance <30 mL/min).
Renal (16% unchanged, 60% as glucuronide conjugates), biliary/fecal (20%)
Propranolol: <1% unchanged in urine; extensively metabolized in liver, metabolites (4-hydroxypropanolol and others) excreted renally (90%) and fecally (10%). Hydrochlorothiazide: >95% renally excreted unchanged; negligible biliary/fecal elimination.
Category C
Category C
Beta-Blocker
Beta-Blocker