Health Glossary - For Everyone

Adrenaline (epinephrine)
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What is adrenaline?

Arenaline is a neuro-hormone that is produced and secreted by the medulla (inner part) of the adrenal glands in direct response by nervous stimulation. It is also known as epinephrine. Adrenaline is not only a hormone, but it is also another one of the important neurotransmitters that is used by the nervous system to send messages to other nerves and also muscle tissue.

Adrenaline the hormone, is produced by the adrenal glands when the body is faced with a stressful (or even life-threatening) situation that causes them to either stand and fight or get away - this is called the "flight or flight" reaction, which is the way humans react when they are frightened.

Adrenaline 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 adrenaline facts

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Why adrenaline is important

People who have allergies (known or unknown) and experience anaphylaxis may especially require adrenaline to stay alive - in fact adrenaline is the recommended first line treatment in anaphylaxis.

Anaphylaxis is the most severe allergic reaction the body can have to any substance either ingested or absorbed through the skin and happens in a severe and unexpected manner. Anaphylaxis causes the following symptoms:

Adrenaline is the recommended and first line of treatment for any severe allergic reaction - it is literally a life-saver.

For information about anaphylaxis, the Anaphylaxis Campaign in the UK is a useful site to view.


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Last reviewed: 14 January 2007 || Last updated: 21 August 2007


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More information

To learn more, go to the following web sites:


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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