transport epinephrine uptake biological_process epinephrine reuptake The directed movement of epinephrine into a cell, typically presynaptic neurons or glial cells. Epinephrine is a hormone produced by the medulla of the adrenal glands that increases heart activity, improves the power and prolongs the action of muscles, and increases the rate and depth of breathing. It is synthesized by the methylation of norepinephrine. adrenaline uptake epinephrine import GO:0051625 adrenaline reuptake