PENTETATE ZINC TRISODIUM
LOE Approachingpentetate zinc trisodium
NDAINHALATION, INTRAVENOUSSOLUTIONPriority Review
Approved
Aug 2004
Lifecycle
LOE Approaching
Competitive Pressure
30/100
Mechanism of Action
Zn-DTPA forms stable chelates with metal ions by exchanging zinc for a metal of greater binding capacity. The radioactive chelates are then excreted by glomerular filtration into the urine. In animal studies, Zn-DTPA forms less stable chelates with uranium and neptunium in vivo resulting in…