The present invention concerns new 2-N-cycloalkylmethyl 3-oxo 5,6-diaryl as-triazines, their method of production, pharmaceutical compositions thereof, and their use as medicaments, for treating pain.The derivatives of 2-N-cycloalkylmethyl 3-oxo 5,6-diaryl as-triazine according to the invention have the general formula I ##STR1## in which Ar represents a phenyl, furyl, thienyl, or pyridyl group, which group may possibly be substituted by a lower C.sub.1 to C.sub.4 alkoxy radical, in particular by the methoxy radical, andn is a whole number having a value of 1 to 4.