Norepinephrine is a naturally occurring chemical in the body that acts as both a hormone and neurotransmitter (a substance that sends signals between nerve cells), according to the Endocrine Society.
Epinephrine and norepinephrine are very similar neurotransmitters and hormones. Epinephrine has slightly more of an effect on your heart, while norepinephrine has more of an effect on your blood ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results