No effect of probenecid on the renal excretion mechanism of a new carbapenem, DA-1131, in dogs.

The effect of probenecid, an anion transport inhibitor, on the renal excretion mechanism of a new anionic carbapenem, DA-1131, was investigated after 1-min intravenous infusion of DA-1131, 10 mg/kg, with or without probenecid, 50 mg/kg, to dogs. The renal clearance (CL(R)) of DA-1131 in dogs without probenecid (3.18+/-0.247 ml/min/kg) was considerably smaller than the reported creatinine clearance (CL(CR)) in dogs, 6.13 ml/min/kg, indicating that renal tubular reabsorption of the drug was observed in dogs. However, the CLR of DA-1131 was not significantly different (3.18+/-0.247 versus 3.29+/-0.698 ml/min/kg) by treatment with probenecid indicating that the tubular reabsorption of DA-1131 was not inhibited by probenecid.