“…Robenz® robenidine, l,3-bis(p-chlorobenzylideneamino)guanidine hydrochloride, first reported by Kantor et al (1970) to have high broad spectrum activity and Berger et al (1972) who proved that its margin of safety is at least sixfold, is a novel anticoccidial for use in chickens. Additional data confirming the high efficacy of robenidine in battery and floor pen studies have appeared in the literature (Badiola et al, 1970;Kantor, 1973 a,b;Reid era/., 1970;Ryley and Wilson, 1971;Waletzky et al, 1970).…”