title: [Biotransformation and pharmacokinetics of mesionic didehydro-4-methyl-5-phenyl-1,3,4-thiadiazolidine-2-thione (LU 2443). Studies on the pharmacokinetics in rats].
abstract: After p.o. application in rats the pharmacokinetic properties of the mesionic dihydro-4-methyl-5-phenyl-1,3,4-thiadiazolidine-2-thione (LU 2443) were examined. The compound is extensively absorbed, in the maximum 18% are eliminated unabsorbed. The half-time of the activity in plasma is 13.17 h, the highest concentration in plasma after p.o. application as a solution of polyethyleneglycol is reached after 5.09 h. The elimination is mainly renal--namely 61.9%, 28.7% are eliminated with the faeces. After 96 h 90.6% of the applicated activity was eliminated. The distribution of LU 2443 was in the whole organism; entrance of the compound into liquor was proven. By radiography of the total animal a transient accumulation of LU 2443 and its metabolites in liver and kidney was determined; besides, a considerable concentration of activity in the suprarenal medulla was found.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001345:Autoradiography; D001711:Biotransformation; D005243:Feces / Q000032:analysis; D006207:Half-Life; D007408:Intestinal Absorption; D007700:Kinetics; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013237:Stereoisomerism; D013830:Thiadiazoles / Q000378:metabolism*; D014018:Tissue Distribution
chemical_list: D013830:Thiadiazoles; C036262:Lu 2443
vernacular_title: Biotransformation und Pharmakokinetik von mesoionischem Didehydro-4-methyl-5-phenyl-1,3,4-thiadiazolidin-2-thion (LU 2443). Untersuchungen zur Pharmakokinetik an Ratten.