albendazole , at 3.8 mg/kg reduced h contortus worm counts by 92.4 , 70.8 and 67.1 per cent while fenbendazole , at 5.0 mg/kg , reduced worm burdens by 51.7 , 95.5 and 93.4 per cent against six- , 10- and 25-day-old parasites respectively .
C0001911
albendazole
C0018889
worm