The [2-

14

C] carbendazol was administered to rats 60 mg/kg PO. The biological half-life

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was 1.1 h and

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was 4.6 h. Radioactivities reached to the highest in liver after 48 h. The percentage of dose excreted was 63% in urine and 30% in feces within 48 h. The metabolites were checked by TLC and radioautography of the urine.