Comparative Pharmacology
Head-to-head clinical analysis: DILT CD versus TAZTIA XT.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DILT CD versus TAZTIA XT.
DILT-CD vs TAZTIA XT
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Diltiazem inhibits calcium ion influx during depolarization of cardiac and vascular smooth muscle cells, thereby reducing intracellular calcium levels. It decreases sinoatrial and atrioventricular nodal conduction and dilates coronary and peripheral arteries.
Diltiazem inhibits calcium ion influx across cardiac and vascular smooth muscle cells, resulting in dilation of coronary arteries and peripheral arterioles, and reduction of myocardial contractility and heart rate.
180-360 mg PO once daily (extended-release); 300-540 mg PO once daily for hypertension; 120-480 mg PO once daily for angina; IV: 0.25 mg/kg bolus over 2 min, then 5-15 mg/hr continuous infusion.
Oral, 120 mg or 180 mg once daily. For hypertension, initiate at 120 mg once daily; for angina, initiate at 180 mg once daily. Maximum dose: 360 mg once daily.
None Documented
None Documented
Terminal elimination half-life 7-10 hours; clinically relevant in hepatic impairment (prolonged to 14-20 hours) and in elderly
3-5 hours (immediate-release) for diltiazem; after TAZTIA XT extended-release, effective half-life is approximately 7-9 hours due to prolonged absorption. Clinical context: steady state achieved in 3-5 days.
Renal 2-4% unchanged; extensive hepatic metabolism; 60-70% fecal, 30-40% renal as metabolites
Renal (approximately 60% as unchanged drug and metabolites, primarily via glomerular filtration and tubular secretion), biliary/fecal (approximately 30-35%)
Category C
Category C
Calcium Channel Blocker
Calcium Channel Blocker