Amino-ether oxides of formula: ##STR1## in which R.sub.1 is lower alkyl, R.sub.2 and R.sub.3 which are the same or different are hydrogen or lower alkyl, R.sub.4 is a phenyl or phenoxy nucleus optionally monosubstituted to trisubstituted by substituents which are the same or different, halogen or lower alkoxy, R.sub.5 is a phenyl radical optionally monosubstituted to trisubstituted by substituents which are the same or different, halogen, lower alkyl, lower alkoxy or nitro, a pyridyl radical or a lower alkyl radical, n is equal to zero, 1 or 2 and p is an integer from 0 to 9, m and q are equal to zero or 1.Local and spasmolytic anaesthetics.