. . . "The novel v-triazolyl[4,5-d]-pyrimidines are of the formula ##STR2## in which Q and Q1 independently of one another are a secondary or tertiary amino radical, X is hydrogen, alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 6 carbon atoms, allyloxy, hydroxyalkoxy having 2 to 4 carbon atoms, alkoxyalkoxy having a total of 3 to 8 carbon atoms, benzyloxy, phenethyloxy, halogen, phenoxy, phenoxyalk" .