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  • Title: [Influence of (+)-Catechin and Dithiocarb on the Pharmacokinetics of Phenprocoumon, Tolbutamide and Three Inhalation Anesthetics in rats].
    Author: Siegers CP, Iven H.
    Journal: Arzneimittelforschung; 1982; 32(11):1437-40. PubMed ID: 6295415.
    Abstract:
    Pretreatment with (+)-catechin ((+)-cyanidanol-3, Catergen) (200 mg/kg p.o.) did not alter the elimination of intravenously injected phenprocoumon (0.6 mg/kg) or tolbutamide (100 mg/kg) in rats, while dithiocarb (Sodium diethyl-dithiocarbamate) (200 mg/kg p.o.) prolonged only the elimination half-life of phenprocoumon to a small extent. The metabolism of halothane (100 ppm), enflurane (100 ppm) or methoxyflurane (300 ppm) was studied by measuring the disappearance of the compounds from the atmosphere of a closed exposure system. Pretreatment with (+)-catechin did not impair the metabolic removal of all three anesthetics; in the case of enflurane (+)-catechin caused a small, but significant shortening of the elimination half-life, for enflurane and methoxyflurane the uptake of the compounds into the rats seemed to be impaired under the influence of (+)-catechin. Dithiocarb strongly impaired the in vivo metabolism of halothane and methoxyflurane, whereas that of enflurane remained unaffected.
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