Abstract: 1-Phenyl-substituted 1,3,5-triazines of the formula: ##SPC1##And pharmaceutically acceptable nontoxic salts thereof whereinR.sub.1, r.sub.2, r.sub.3, r.sub.4, r.sub.5, r.sub.6, r.sub.7, r.sub.8 and R.sub.9 are the same or different and each is selected from the group consisting of hydrogen, straight or branched chain alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, halogen, nitro, cyano, amino, acylamino, alkoxycarbonylamino, carboxy, alkoxycarbonyl, carbamoyl, acyl, haloacyl, alkylsulphinyl, alkylsulphonyl, haloalkylsulphonyl and sulphamoyl;R.sub.10 is hydrogen, straight or branched chain alkyl, cycloalkyl, haloalkyl, alkoxy, alkoxyalkyl, haloalkoxyalkyl, alkylthioalkyl, haloalkylthioalkyl, alkenyl, alkynyl, alkoxycarbonyl, (alkylthio)carbonyl, (alkylthio)thiocarbonyl, acylamino, diacylamino, amino, dialkylamino, polymethyleneimino, polymethyleneimino interrupted by a heteroatom in the chain, or unsubstituted or substituted benzyl or aryl;R.sub.

Abstract: 1-(4-Phenoxyphenyl)-1,3,5-triazines of the formula: ##SPC1##Or pharmaceutically acceptable nontoxic salts thereof are produced by reacting a urea or thiourea derivative of the formula: ##SPC2##With a carbonylisocyanate of the formula: ##EQU1## to produce a 1-(4-phenoxyphenyl)-1,3,5-triazine as above defined wherein R.sup.11 is hydrogen, and when a 1-(4-phenoxyphenyl)-1,3,5-triazine as above defined wherein R.sup.11 is alkyl is desired, reacting the triazine wherein R.sup.11 is hydrogen with a compound of the formula (alk).sub.n Y.The above defined triazines and their salts are useful as agents against protozoan infections and are particularly useful against coccidiosis.