Abstract
The effect of two qualities of feed on the kinetic disposition of triclabendazole (TCBZ) metabolites was investigated in sheep (n = 4) following oral administration of TCBZ at 10 mg/kg body weight. The same sheep were given sequentially two qualitatively different diets: a low-quality (LQ) diet based on wheat straw ad libitum, and a high-quality (HQ) diet based on barley+alfalfa. The triclabendazole sulphoxide (TCBZSO) and triclabendazole sulphone (TCBZSO2) concentrations were determined in blood samples taken serially from the jugular vein between 5 min and 9 days after TCBZ administration. The parent drug TCBZ was not detected in any of the samples. The quality of feed affected the kinetics of both TCBZ metabolites. The rate of appearance (Tlag and Tmax) in the jugular blood was slower and the formed amount (AUC) of TCBZSO was slightly higher when the sheep were on the LQ diet (Tlag = 7.74 h; Tmax = 27.91 h; AUC = 1042 μg.h/ml) than when they were offered the HQ diet (Tlag = 1.90 h; Tmax = 16.01 h; AUC = 832.4 μg.h/ml). The MRT of TCBZSO was about 40% longer with the LQ diet than with the HQ diet. Similarly, the rate of appearance of TCBZSO2 in plasma of sheep was slower when they were on the LQ diet than when they were on the HQ diet, suggesting an impairment of the hepatic enzymatic activity involved in the oxidation of TCBZSO to TCBZSO2.
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REFERENCES
Ali, D.N. and Hennessey, D.R., 1995a. The effect of level of feed intake on pharmacokinetic disposition of oxfendazole in sheep. International Journal for Parasitology, 25, 63-70
Ali, D.N. and Hennessey, D.R., 1995b. the effect of reduced feed intake on the efficacy of oxfendazole against benzimidazole resistant Haemonchus contortus and Trichostrongylus colubriformis in sheep. International Journal for Parasitology, 25, 71-75
Ali, D.N. and Hennessey, D.R., 1996. The effect of level of feed intake on the pharmacokinetic disposition and efficacy of ivermectin in sheep. Journal of Veterinary Pharmacology and Therapeutics, 19, 89-94
Baggot, J.D. and McKellar, Q.A., 1994. The absorption, distribution and elimination of anthelmintic drugs: the role of pharmacokinetics. Journal of Veterinary Pharmacology and Therapeutics, 17, 409-419
Bennet, J.L. and Koöbler, P., 1987. Fasciola hepatica: action in vitro of triclabendazole on immature and adult stage. Experimental Parasitology, 63, 49-57
Bull, M.S. and Shume, G.R.E., 1987. A rapid high-performance liquid chromatographic procedure for the determination of triclabendazole and its metabolites in sheep plasma. Journal of Pharmaceutical and Biomedical Analysis, 5, 527-531
Campbell, T.C., 1977. Nutrition and drug metabolizing enzymes. Clinical Pharmacology and Therapeutics, 22, 699-706
Church, D.C., 1979. Digestive Physiology and Nutrition of Ruminants, Vol. 1: Digestive Physiology, (O & B Books, Corvallis, OR, USA)
Gibaldi, M. and Perrier, D., 1982. Pharmacokinetics, 2nd edn, (Marcel Dekker, New York)
Krishnaswamy, K., 1989. Drug metabolism and pharmacokinetics in malnourished children. Clinical Pharmacokinetics, 17(supplement 1), 68-88
Lanusse, C.E. and Prichard, R.K., 1993. Clinical pharmacokinetics and metabolism of benzimidazole anthelmintics in ruminants. Drug Metabolism Review, 25, 235-279
Lechner-Doll, M., Rutagwenda, T., Schwartz, H.J., Schultka, W. and Engelhardt, W.v., 1990. Seasonal changes of ingesta mean residence time and forestomach fluid volume in indigenous camels, cattle, sheep and goats grazing a thornbush savannah pasture in Kenya. Journal of Agricultural Science, Cambridge, 15, 409-420
Narang, R.K., Mehtas, S. and Mathur, V.S., 1979. Pharmacokinetics study of antipyrine in malnourished children. American Journal of Nutrition, 30, 1979-1982
National Research Council, 1985. Nutrient Requirements of Sheep, 6th edn, (National Academy Press, Washington DC)
Oukessou, M., Toutain, P.L., Galtier, P. and Alvinerie, M., 1991. Étude pharmacocinétique comparée du triclabendazole chez le mouton et le dromadaire. Revue d'Élevage et de Médecine Vétérinaire des Pays Tropicaux, 44, 447-452
Prichard, R.K., 1985. Interaction of host physiology and efficacy of antiparasitic drugs. Veterinary Parasitology, 18, 103-110
Sanchez, S.F., Alvarez, L.I. and Lanusse, C.E., 1996. Nutritional condition affects the disposition kinetics of albendazole in cattle. Xenobiotica, 26, 307-320
Yamaoka, K., Tnaigawara, Y., Nakagawa, T. and Uno, T., 1981. A pharmacokinetic analysis program (MULTI) for microcomputer. Journal of Pharmacobiodynamics, 4, 879-889
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Oukessou, M., Souhaili, Z. The effect of feed quality on the kinetic disposition of orally administered triclabendazole in sheep. Vet Res Commun 22, 257–263 (1998). https://doi.org/10.1023/A:1006095400309
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DOI: https://doi.org/10.1023/A:1006095400309