Pharmacokinetics of florfenicol and its metabolite, florfenicol amine, in the Korean catfish (Silurus asotus)

The pharmacokinetics of florfenicol and its metabolite, florfenicol amine, was investigated after its intravenous (i.v.) and oral (p.o.) administration of 20 mg/kg of body weight in Korean catfish (Silurus asotus). After i.v. florfenicol injection (as a bolus), the terminal half‐life (t1/2), the vol...

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Veröffentlicht in:Journal of veterinary pharmacology and therapeutics 2006-02, Vol.29 (1), p.37-40
Hauptverfasser: Park, B.K, Lim, J.H, Kim, M.S, Yun, H.I
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Kim, M.S
Yun, H.I
description The pharmacokinetics of florfenicol and its metabolite, florfenicol amine, was investigated after its intravenous (i.v.) and oral (p.o.) administration of 20 mg/kg of body weight in Korean catfish (Silurus asotus). After i.v. florfenicol injection (as a bolus), the terminal half‐life (t1/2), the volume of distribution at steady state (Vdss), and total body clearance were 11.12 ± 1.06 h, 1.09 ± 0.09 L/kg and 0.07 ± 0.01 L·kg/h respectively. After p.o. administration of florfenicol, the t1/2, Cmax, tmax and oral bioavailability (F) were 15.69 ± 2.59 h, 9.59 ± 0.36 μg/mL, 8 h and 92.61 ± 10.1% respectively. Florfenicol amine, an active metabolite of florfenicol, was detected in all fish. After i.v. and p.o. administration of florfenicol, the observed Cmax values of florfenicol amine (3.91 ± 0.69 and 3.57 ± 0.65 mg/L) were reached at 0.5 and 7.33 ± 1.15 h. The mean metabolic rate of florfenicol amine after i.v. and p.o. administration was 0.4 and 0.5 respectively.
doi_str_mv 10.1111/j.1365-2885.2006.00709.x
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After i.v. florfenicol injection (as a bolus), the terminal half‐life (t1/2), the volume of distribution at steady state (Vdss), and total body clearance were 11.12 ± 1.06 h, 1.09 ± 0.09 L/kg and 0.07 ± 0.01 L·kg/h respectively. After p.o. administration of florfenicol, the t1/2, Cmax, tmax and oral bioavailability (F) were 15.69 ± 2.59 h, 9.59 ± 0.36 μg/mL, 8 h and 92.61 ± 10.1% respectively. Florfenicol amine, an active metabolite of florfenicol, was detected in all fish. After i.v. and p.o. administration of florfenicol, the observed Cmax values of florfenicol amine (3.91 ± 0.69 and 3.57 ± 0.65 mg/L) were reached at 0.5 and 7.33 ± 1.15 h. 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After i.v. florfenicol injection (as a bolus), the terminal half‐life (t1/2), the volume of distribution at steady state (Vdss), and total body clearance were 11.12 ± 1.06 h, 1.09 ± 0.09 L/kg and 0.07 ± 0.01 L·kg/h respectively. After p.o. administration of florfenicol, the t1/2, Cmax, tmax and oral bioavailability (F) were 15.69 ± 2.59 h, 9.59 ± 0.36 μg/mL, 8 h and 92.61 ± 10.1% respectively. Florfenicol amine, an active metabolite of florfenicol, was detected in all fish. After i.v. and p.o. administration of florfenicol, the observed Cmax values of florfenicol amine (3.91 ± 0.69 and 3.57 ± 0.65 mg/L) were reached at 0.5 and 7.33 ± 1.15 h. 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After i.v. florfenicol injection (as a bolus), the terminal half‐life (t1/2), the volume of distribution at steady state (Vdss), and total body clearance were 11.12 ± 1.06 h, 1.09 ± 0.09 L/kg and 0.07 ± 0.01 L·kg/h respectively. After p.o. administration of florfenicol, the t1/2, Cmax, tmax and oral bioavailability (F) were 15.69 ± 2.59 h, 9.59 ± 0.36 μg/mL, 8 h and 92.61 ± 10.1% respectively. Florfenicol amine, an active metabolite of florfenicol, was detected in all fish. After i.v. and p.o. administration of florfenicol, the observed Cmax values of florfenicol amine (3.91 ± 0.69 and 3.57 ± 0.65 mg/L) were reached at 0.5 and 7.33 ± 1.15 h. The mean metabolic rate of florfenicol amine after i.v. and p.o. administration was 0.4 and 0.5 respectively.</abstract><cop>Oxford, UK</cop><pub>Blackwell Science Ltd</pub><pmid>16420300</pmid><doi>10.1111/j.1365-2885.2006.00709.x</doi><tpages>4</tpages></addata></record>
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subjects Administration, Oral
amines
Animals
Anti-Bacterial Agents - administration & dosage
Anti-Bacterial Agents - metabolism
Anti-Bacterial Agents - pharmacokinetics
Area Under Curve
catfish
Catfishes
drug evaluation
florfenicol
Half-Life
Injections, Intravenous
metabolites
pharmacokinetics
Silurus asotus
Thiamphenicol - administration & dosage
Thiamphenicol - analogs & derivatives
Thiamphenicol - metabolism
Thiamphenicol - pharmacokinetics
Tissue Distribution
veterinary medicine
title Pharmacokinetics of florfenicol and its metabolite, florfenicol amine, in the Korean catfish (Silurus asotus)
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