Pharmacokinetic analysis
Pharmacokinetic parameters were determined for each
individual fish. Plasma concentrations of norfloxacin after IV and
PO administrations were subjected to a compartmental and noncompartmental analysis using computerized program, WinNonlin 4.1
(Pharsight, Mountain View CA, USA). Following IV administration,
the plasma concentration vs time data of norfloxacin in goldfishes
were fitted to a two-compartment open model system according to
the following bi-exponential equation [9]: C
p
=Ae-αt+Be-βt