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Further information
ATC Vet Code: QJ01MA93
Pharmacodynamic properties
Marbofloxacin is a synthetic, bactericidal antimicrobial, belonging to the fluoroquinolone group which acts by inhibition of DNA gyrase. It is effective against a wide range of Gram positive bacteria (in particular Staphylococci) and Gram negative bacteria (Escherichia coli, Salmonella typhimurium, Campylobacter jejunii, Citrobacter, Enterobacter, Proteus spp, Klebsiella spp Actinobacillus pleuropneumoniae, Bordetella bronchiseptica, Pasteurella haemolytica, Pasteurella multocida, Haemophilus spp, Moraxella spp, Pseudononas aeruginosa) as well as Mycoplasma (Mycoplasma bovis, Mycoplasma dispar, Mycoplasma hyopneumoniae).
Resistance to Streptococcus may occur.
Pharmacokinetic properties
After subcutaneous administration in cattle and pigs at the recommended dose of 2 mg/kg, marbofloxacin is readily absorbed and its bioavailability is close to 100 %. It is weakly bound to plasma proteins (less than 10 % in pigs and 30 % in cattle), extensively distributed and, in most tissues (liver, kidney, skin, lung, bladder, uterus, digestive tract), it achieves higher concentrations than in plasma.
In cattle, marbofloxacin is eliminated slowly in pre-ruminating calves (t1/2β = 5-9 h) predominantly in the active form in urine (3/4) and faeces (1/4).
In pigs, marbofloxacin is eliminated slowly (t1/2β = 8-10 h) predominantly in the active form in urine (2/3) and faeces (1/3).