That is the main difference between ephedrine and Synephrine 5985-28-4, as ephedrine is known to activate both alpha-1 and alpha-2 adrenoreceptors strongly.
Dat ass den Haaptunterschied tëscht ephedrine an Synephrine 5985-28-4, well ephedrine ass bekannt fir béid alpha-1 an alpha-2 adrenoreceptors ze aktivéieren.