“…Although mebendazole is used against nematodes in horses and sheep, there appears to be little published information on its efficacy against cestodes in these species. BRADLEY and RADHAKRISHNAN (1973) and DRUDGE et al (1974) could not demonstrate activity ofmebendazole against cestodes of horses but KELLY and BAIN (1975) obtained 96% and 99% activity against Anoplocephala perfoZiata when horses were given a single oral dose of 15 and 20 mgjkg micronised material. At the usual dose rate of 10 mgjkg only 52% of worms were eliminated.…”