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 ...

Both dopamine and norepinephrine are recommended as first-line vasopressor agents in the treatment of shock. There is a continuing controversy about whether one agent is superior to the other. In this ...

Our most popular blog post last year was all about dopamine, the sexiest of the brain’s chemical signals involved in ADHD. Dopamine is sexy, and has even become a bit of an internet meme, because of ...

Narcolepsy can lead to excessive daytime sleepiness, as well as cataplexy, a sudden loss of muscle tone. Other symptoms can include sleep paralysis and hallucinations that occur both during sleep ...

Researchers at RIKEN Center for Brain Science have visualized the dynamic processes involving norepinephrine that influence different types of fear-memory formation in a living mouse model. The study ...

Norepinephrine is a strong vasoconstrictor frequently used to treat severe hypotension by increasing systemic vascular resistance and blood pressure. Structurally, norepinephrine is quite similar to ...

A large randomized trial shows no difference in death rates with the two agents overall but significantly higher mortality with dopamine among patients with cardiogenic shock. When fluid therapy is ...