Differences: Adrenaline(epinephrine) raises the pulse and blood pressure and relaxes the bronchial tubes(air passages) muscles and is used to relieve asthma and severe allergic reactions. Noradrenaline(norepinephrine) raises the blood pressure and may actually slow the pulse rate. It is a neurotransmitter and thus acts on the brain and increases its responsiveness.
Answered 1/9/2014
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No difference: Noradrenaline is a precursor of adrenaline; the former is converted to the latter. So, actions are the same.
Answered 11/27/2017
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