Comparative Pharmacology
Head-to-head clinical analysis: ISOPAQUE 280 versus RENOGRAFIN 76.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ISOPAQUE 280 versus RENOGRAFIN 76.
ISOPAQUE 280 vs RENOGRAFIN-76
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
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.
Radiopaque contrast agent that attenuates X-rays by absorbing them due to its high iodine content, allowing visualization of vascular structures and organs during radiographic procedures.
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.
Intravenous administration of 50-100 mL (14.1-28.2 g iodine) as a single dose for angiography; dose varies by procedure and patient size.
None Documented
None Documented
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.
Terminal elimination half-life: 1–2 hours (normal renal function); prolonged to >20 hours in severe renal impairment (CrCl <10 mL/min)
Renal: approximately 95% of the dose is excreted unchanged in the urine within 24 hours via glomerular filtration. Fecal: <5%; biliary excretion is negligible.
Renal: >95% unchanged via glomerular filtration; biliary/fecal: negligible (<5%)
Category C
Category C
Radiocontrast Agent
Radiocontrast Agent