Pressor, bronchodilator and antihistamine activity tests, made by The Lilly Research Laboratories of Eli Lilly and Company on the hydrochloride salts of I and its 0-methyl, N- dimethyl and 0-methyl-N-dimethyl derivatives, revealed that these amines are inactive in these respects. They showed less than 10%“Egotrate” activity. Since the introduction of a second@-aminoethyl function does not significantly alter the chemical properties of the ...