8 (2-Alkoxybenzylidine)amino{9 guanidines and their anticoccidial use

[(2-Alkoxybenzylidine)amino]guanidines and their pharmacologically acceptable salts are prepared and employed as anticoccidials. The compounds correspond to the formula WHEREIN R represents methyl, ethyl or benzyl; X represents chloro, bromo, amino, dimethylamino, diethylamino or acetamido; M represents hydrogen or the radical AND N REPRESENTS AN INTEGER OF 1 OR 2 WITH THE PROVISO THAT WHEN N IS 1, THE X representation is in the 4 ring position and when n is 2, the X representations are in any of the 3, 4 or 5 ring positions.