Disposition of radiolabeled FAVOR PAC in rats.
FAVOR is the name for a family of superabsorbent cross-linked sodium polyacrylate polymers developed by Stockhausen GmbH & Co KG (Krefeld, Germany) that are known for their ability to absorb and retain large volumes of fluid. The absorption, distribution, rates and routes of excretion of radiolabeled FAVOR PAC (CAS Registry No. 9003-04-7; [14C]FAVOR PAC), one member of the FAVOR family, were evaluated following a single oral administration of the compound. Male Sprague-Dawley rats were administered single doses of 26 to 39 mg/kg [14C]FAVOR PAC by gavage. Approximately 98.8% (normalized mean) of the total administered dose was excreted in the feces within 5 days, and the majority ( approximately 88%) was excreted within the first 24 h. Urinary excretion accounted for 0.69% (normalized mean) of the total administered dose. Recovery of radioactivity in the organs, tissues, and carcass was generally less than 0.5% of the dose administered. Levels of total radioactivity in whole blood ranged from 0.75 to 1.20 microg equiv/g. Biliary elimination of total radioactivity accounted for less than 0.1% of the dose administered. The results indicate that FAVOR PAC is poorly absorbed and rapidly eliminated in feces following oral administration.
Haselbach
J
J
Stockhausen GmbH & Co KG, Krefeld, 47704, Germany.
Hey
S
S
Jones
C
C
D000180:Acrylic Resins / Q000008:administration & dosage / Q000493:pharmacokinetics*; D000284:Administration, Oral; D000818:Animals; D002250:Carbon Radioisotopes; D008297:Male; D011108:Polymers / Q000008:administration & dosage / Q000493:pharmacokinetics*; D051381:Rats; D017207:Rats, Sprague-Dawley; D014018:Tissue Distribution
D000180:Acrylic Resins; D002250:Carbon Radioisotopes; D011108:Polymers; C006903:carbopol 940