Comparative Pharmacology
Head-to-head clinical analysis: GASTROGRAFIN versus OMNIPAQUE 240.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GASTROGRAFIN versus OMNIPAQUE 240.
GASTROGRAFIN vs OMNIPAQUE 240
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Gastrografin is a water-soluble iodinated contrast agent that increases the radiodensity of the gastrointestinal tract, allowing visualization on X-ray. It acts by absorbing X-rays due to its high iodine content.
Iodinated radiocontrast agent that attenuates X-rays due to high atomic number of iodine, enhancing vascular and tissue contrast during imaging procedures. It distributes in extracellular fluid and is excreted unchanged by glomerular filtration.
Oral or rectal: 50-100 mL of a 1:1 dilution with water (or full strength as needed) for CT or fluoroscopic studies. Typically single dose.
Intravenous administration: 50-200 mL (12-48 g iodine) of OMNIPAQUE 240 (240 mg iodine/mL) as a single dose, adjusted for procedure and patient size.
None Documented
None Documented
Terminal elimination half-life: 1-2 hours (for absorbed diatrizoate); prolongation in renal impairment (up to 20 hours in anuria).
Terminal half-life approximately 1-2 hours in normal renal function; prolonged to 20-40 hours in severe renal impairment (CrCl <30 mL/min), necessitating dose adjustment
Renal: 80-90% (glomerular filtration, unchanged); Biliary/Fecal: <5% (minor biliary excretion of absorbed fraction).
Primarily renal (glomerular filtration, no tubular reabsorption); >95% excreted unchanged in urine within 24 hours; <5% biliary/fecal
Category C
Category C
Radiographic Contrast Agent
Radiographic Contrast Agent