Epinephrine vs Norepinephrine Epinephrine (adrenaline) and norepiphrine (noradrenalin) are known as neurotransmitters that belong to a chemical class of catecholamines; which are derived from thyrosin. Both these chemicals regulate attention, mental focus, arousal, and cognition in humans. These neurotransmitters have approximately the same potency for all the receptor types; α and β. Thus, their […]