In vitro febantel transformation by sheep and cattle ruminal fluids and metabolism by hepatic subcellular fractions from different animal species.
Febantel and one of its main metabolites, febantel sulphoxide, are chemically modified to only a slight extent when incubated in vitro with sheep and cattle ruminal fluids; other major metabolites, fenbendazole and oxfendazole, are respectively, oxidized to oxfendazole and reduced to fenbendazole. Febantel is negligibly metabolized by hepatic cytosol fractions but microsome preparations effect more extensive metabolic transformations. Important differences in this respect were found between microsome preparations from rat, horse, pig, cattle, sheep, chicken and trout livers.
Beretta
C
C
Institute of Veterinary Pharmacology and Toxicology, University of Milan, Italy.
Fadini
L
L
Stracciari
J M
JM
Montesissa
C
C
D000818:Animals; D000871:Anthelmintics / Q000378:metabolism*; D001562:Benzimidazoles / Q000378:metabolism; D001711:Biotransformation; D002417:Cattle; D002645:Chickens; D003600:Cytosol / Q000378:metabolism; D005260:Female; D005273:Fenbendazole / Q000378:metabolism; D006146:Guanidines / Q000378:metabolism*; D006736:Horses; D008099:Liver / Q000378:metabolism*; D008297:Male; D008862:Microsomes, Liver / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains; D012417:Rumen / Q000378:metabolism*; D012756:Sheep; D013045:Species Specificity; D013552:Swine; D014337:Trout
D000871:Anthelmintics; D001562:Benzimidazoles; D006146:Guanidines; D005273:Fenbendazole; C011030:oxfendazole; C017309:febantel