Reduction of the renal toxicity of cis-dichlorodiammineplatinum(II) by probenecid.

Probenecid, when administered sc to F344 rats 1 hour prior to an iv LD50 dose of cis-dichlorodiammineplatinum(II) (CDPP), reduced significantly the peak BUN and serum creatinine levels which occurred 4 days following CDDP. Renal histopathology was similarly reduced by probenecid pretreatment. In BDF, mice, the LD50 value of CDDP administered ip without probenecid pretreatment was 17 mg/kg; the LD50 dose with probenecid was increased to greater than 19 mg/kg. Probenecid pretreatment did not influence the therapeutic response to CDDP when the letter was administered to BDF mice bearing L1210 leukemia.