Comparative Pharmacology
Head-to-head clinical analysis: CRYSTODIGIN versus LANOXIN.
Head-to-head clinical analysis: CRYSTODIGIN versus LANOXIN.
CRYSTODIGIN vs LANOXIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Cardiac glycoside that inhibits the Na+/K+-ATPase pump, leading to increased intracellular sodium, which in turn promotes calcium influx via the Na+/Ca2+ exchanger, resulting in increased myocardial contractility (positive inotropy). It also has negative chronotropic and dromotropic effects via vagomimetic action.
Inhibits Na+/K+ ATPase, increasing intracellular Ca2+ via Na+/Ca2+ exchange, enhancing cardiac contractility and reducing conduction through AV node.
0.5 mg intravenously over 2-4 hours, then 0.25 mg every 6 hours as needed up to a total of 1.5 mg in 24 hours.
0.125-0.25 mg orally once daily; loading dose 0.5-0.75 mg orally divided over 24-48 hours if rapid digitalization required.
None Documented
None Documented
Terminal elimination half-life approximately 1.6–1.9 days (38–45 hours) in patients with normal renal function; prolonged in renal impairment.
Terminal elimination half-life is approximately 36-48 hours in patients with normal renal function; prolonged to 3.5-5 days in anuria.
Primarily renal excretion of unchanged drug; ~80-90% eliminated in urine, ~10-20% in feces via biliary excretion.
Renal excretion of unchanged drug (60-80%) and biliary/fecal elimination (20-40%).
Category C
Category C
Cardiac Glycoside
Cardiac Glycoside