Norepinephrine
The chemical compound norepinephrine, also known as noradrenaline NC8O3H11 is a catecholamine neurotransmitter hormone released from the adrenal glands that affects parts of the human brain where attention and impulsivity are controlled. This compound is part of the fight-or-flight response and also directly increases heart rate, energy release from fat, and muscle readiness. http://www.fact-index.com/n/no/norepinephrine.html

Norepinephrine erzielt mit scirus.com mehr als doppelt soviel Treffer wie noradrenaline.

Der Neurotransmitter Noradrenalin (auch Norepinephrin) wird im Englischen "norepinephrine" genannt.

An old thread but it is not quite as simple as the previous posting makes out.
In the UK and other countries, the name is still "noradrenaline" as it has traditionally been.

"Why has the BNFC changed the names of some drugs? Why does the BNFC use adrenaline and not epinephrine?
European law requires the use of the Recommended International Non-proprietary Name (rINN) for medicinal substances. In most cases the familiar British Approved Name (BAN) and the rINN are identical. Where they were different the BANs have been amended to conform to the rINNs. The only exception to this is adrenaline and noradrenaline.
Adrenaline and noradrenaline are the terms used in the titles of monographs in the European Pharmacopoeia and are thus the official names in the member states. For these substances the British Pharmacopoeia shows the European Pharmacopoeia names and the rINNs (epinephrine and norepinephrine respectively) at the head of the monographs; the BNFC uses a similar style."
http://bnfc.org/bnfc/bnfcextra/current/450003.htm