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Adrenaline (formula C9H13NO3, also known as epinephrine) is a naturally produced hormone within the human body. It is produced in the adrenal glands (located above the kidneys) and travels in the blood stream. It is usually associated with shock and may cause an increase in heart rate, increased respiratory rate, vasoconstriction, vasodilation and lipolysis. It is classified as part of the amine family.

As well as being a naturally occurring hormone, Adrenaline is also used in medicine to treat Anaphylaxis. In the case of an Anaphylactic shock, Adrenaline is injected causing the constriction of blood vessels to increase the sufferer's blood pressure. The injection can also ease difficulty breathing due to a reduction in swelling and hence the dilation of the airways[1].

Adrenaline chemical structure[2].


  1. last viewed 17/10/2016
  2. Adrenaline. (n.d.). [image] Available at: [Accessed 16 Oct. 2014].
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