4-Amino-6-(trichloroethenyl)-1,3-benzenedisulfonamide, a new, potent fasciolicide

Abstract
Synthesis and fasciolicidal activity of 4-amino-6-(trichloroethenyl)-1,3-benzenedisulfonamide are reported. A single dose of 15 mg/kg was effective in removing over 90% of immature Fasciola hepatica from sheep (6 wk after infection) and calves (8 wk after infection). A 2.5 mg/kg dose removed over 90% of mature (16 wk old) liver fluke from sheep. Single oral doses up to 400 mg/kg were tolerated by sheep without gross toxic symptoms.

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