Comparative Pharmacology
Head-to-head clinical analysis: GASTROVIST versus IOPAMIDOL 250.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GASTROVIST versus IOPAMIDOL 250.
GASTROVIST vs IOPAMIDOL-250
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Gastrovist (diatrizoate meglumine) is a iodinated radiographic contrast agent that attenuates X-rays, enhancing visualization of the gastrointestinal tract. It acts as a hyperosmolar agent, drawing fluid into the bowel lumen and providing positive contrast for imaging.
Iopamidol is a non-ionic, water-soluble, iodinated radiographic contrast agent that attenuates X-rays, thereby enhancing vascular and tissue contrast during imaging procedures. It acts by increasing the radiodensity of blood vessels and organs.
Oral: 50-100 mL of a 30% w/v solution (300 mg iodine/mL) administered orally 30-60 minutes before imaging. Repeat dose if necessary for adequate visualization. Rectal: 100-200 mL of a 30% w/v solution as enema for CT colonography.
1-2 mL/kg intravenously for contrast imaging, not to exceed 200 mL total; dose and rate vary by procedure and patient weight.
None Documented
None Documented
Terminal elimination half-life is approximately 2 hours in patients with normal renal function (creatinine clearance >90 mL/min); prolonged to >20 hours in severe renal impairment (CrCl <30 mL/min).
Terminal half-life 1.5-2 hours in normal renal function; may extend to 5-10 hours in severe renal impairment (CrCl <30 mL/min)
Primarily renal (glomerular filtration): >95% of iodinated contrast is excreted unchanged in urine within 24 hours; <5% fecal or biliary.
Renal: >90% unchanged via glomerular filtration; biliary/fecal: <2%
Category C
Category C
Radiocontrast Agent
Radiocontrast Agent