Pharmacodynamics and pharmacokinetics of cefoperazone and cefamandole in dogs following single dose intravenous and intramuscular administration
Articolo
Data di Pubblicazione:
2003
Citazione:
Pharmacodynamics and pharmacokinetics of cefoperazone and cefamandole in dogs following single dose intravenous and intramuscular administration / C. Montessina, R. Villa, P. Anfossi, R. Zanoni, S. Carli. - In: THE VETERINARY JOURNAL. - ISSN 1090-0233. - 166:2(2003 Sep), pp. 170-176. [10.1016/S1090-0233(03)00051-0]
Abstract:
The pharmacokinetics and intramuscular (i.m.) bioavailability of cefoperazone and cefamandole (20 mg/kg) were investigated
in dogs and the findings related to minimal inhibitory concentrations (MICs) for 90 bacterial strains isolated clinically from dogs.
The MICs of cefamandole for Staphylococcus intermedius (MIC90 0.125 mcg/mL) were lower than those of cefoperazone (MIC90
0.5 mcg/mL) although the latter was more effective against Escherichia coli strains (MIC90 2.0 mcg/mL vs. 4.0 mcg/mL).
The pharmacokinetics of the drugs after intravenous administrations were similar: a rapid distribution phase was followed by a
slower elimination phase (t(1/2)lambda2 84.0 ± 21.3 min for cefoperazone and 81.4 ± 9.7 min for cefamandole). The apparent volume of
distribution and body clearance were 0.233 L/kg and 1.96 mL/kg/min for cefoperazone, 0.190 L/kg and 1.76 mL/kg/min for cefamandole.
After i.m. administration the bioavailability and peak serum concentration of cefamandole (85.1 ± 13.5% and
35.9 ± 5.4l mcg/mL) were significantly higher than cefoperazone (41.4 ± 7.1% and 24.5 ± 3.0l mcg/mL), but not the serum half-lives
(t(1/2)el 134.3 ± 12.6 min for cefoperazone and 145.4 ± 12.3 min for cefamandole). The time above MIC90 indicated that cefamandole
can be administered once daily to dogs for the treatment of staphylococcal infections (T > MIC for S. intermedius
23.8 ± 0.3 and for Staphylococcus aureus 21.6 ± 0.6 h).
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Bioavailability; Cefamandole; Cefoperazone; Dog; Pharmacokinetics
Elenco autori:
C. Montessina, R. Villa, P. Anfossi, R. Zanoni, S. Carli
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