Overview
Iothalamate meglumine is an ionic iodinated contrast agent historically used for excretory urography and renal function testing.
Properties
Higher osmolarity than modern nonionic agents, radiopaque, and water soluble for oral or intravenous administration depending on indication.
Uses
Used for excretory urography, some renal clearance studies and when specific diagnostic protocols require ionic contrast.
Safety
Higher osmolarity increases risk of adverse reactions; modern practice favors nonionic low osmolar agents for most intravascular uses.