Health Glossary - For Everyone

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What is norepinephrine?

Norepinephrine is a neurotransmitter that is used by the sympathetic nervous system to send messages to other nerves and also muscle tissue.

Norepinephrine is also a hormone that is produced and secreted by the medulla (inner part) of the adrenal glands in direct response by nervous stimulation.

Norepinephrine causes blood pressure to rise, the heart to beat faster, increases metabolism and blood glucose levels, and increases energy production and blood flow to the extremeties.


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Important norepinephrine facts

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Why norepinephrine is important

Norepinephrine activates two types of cell membrane receptors:

Norepinephrine is also an important neurotransmitter in many parts of the central nervous system, where it participates in blood pressure regulation, arousal and mood.


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Last reviewed: 14 January 2007 || Last updated: 30 September 2007


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More information

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NOTE: Mega doses of any type of vitamin, mineral, amino acid or herbal supplement cannot cure illnesses and in fact can be very dangerous and produce toxic side effects and interfere with medicine you are taking. Always ensure you consult your doctor before taking any type of complementary supplements.
Disclaimer: This guide is not intended to be used for diagnostic or prescriptive purposes. For any treatment or diagnosis of illness, please see your doctor.


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