Dopamine or 3, 4-dihydroxyphenethylamine is a catecholamine compound synthesized in the brain and kidneys from L-DOPA (dihydroxyphenethylamine). It is an inhibitory neurotransmitter that inhibits the action of corticosteroids.
Noradrenaline is the hormone released by the body under specific condition, such as cardiovascular distress. The hormone is found to show structural resemblance to adrenaline.