Comparative Pharmacology
Head-to-head clinical analysis: IOPAMIDOL 200 IN PLASTIC CONTAINER versus ISOPAQUE 280.
Peer-Reviewed Evidence
Head-to-head clinical analysis: IOPAMIDOL 200 IN PLASTIC CONTAINER versus ISOPAQUE 280.
IOPAMIDOL-200 IN PLASTIC CONTAINER vs ISOPAQUE 280
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Iopamidol is a nonionic, water-soluble iodinated radiographic contrast agent that attenuates X-rays by increasing the density of tissues, thereby enhancing vascular and tissue contrast during imaging procedures.
Isopaque 280 (metrizoate) is an ionic, high-osmolar iodinated radiocontrast agent that attenuates X-rays by increasing the density of tissues where it distributes, thereby enhancing vascular and organ visualization during imaging.
Intravascular administration: 1-2 mL/kg (200 mg I/mL) intravenously, up to a maximum of 150 mL per diagnostic procedure. Intraarterial administration: varies by procedure; typical 5-60 mL per injection.
Iohexol (ISOPAQUE 280) is administered intravenously, intra-arterially, or by other appropriate routes. Typical adult dose for CT imaging: 50–150 mL (concentration 280 mg I/mL) as a bolus or infusion. For angiography: 5–80 mL per injection, depending on procedure. Repeat doses may be given up to a total of 350 mL.
None Documented
None Documented
Terminal elimination half-life approximately 2 hours (range 1.5-2.5 hours) in patients with normal renal function; prolonged in renal impairment.
Terminal elimination half-life is 1.5–2 hours in patients with normal renal function; prolonged to >10 hours in severe renal impairment, requiring dose adjustment.
Primarily renal (99% unchanged in urine within 24 hours). Biliary/fecal excretion <1%.
Renal: approximately 95% of the dose is excreted unchanged in the urine within 24 hours via glomerular filtration. Fecal: <5%; biliary excretion is negligible.
Category C
Category C
Radiocontrast Agent
Radiocontrast Agent