Neurotransmitters are classified according to their [[chemical elements|chemical structure]]. Among the most important are the [[catecholamines]] [[Adrenalin]]], [[Noradrenalin]] and [[Dopamine]], [[Acetylcholine]], and [[Serotonin]], as well as gamma-aminobutyric acid, glycine, glutamate and many other neuropeptides, which are not discussed here.
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Neurotransmitters are classified according to their [[Chemische_Elemente/en|chemical structure]]. Among the most important are the [[Katecholamine/en|catecholamines]] [[Adrenalin]]], [[Noradrenalin]] and [[Dopamin/en|Dopamine]], [[Acetylcholin/en|Acetylcholine]], and [[Serotonin/en|Serotonin]], as well as gamma-aminobutyric acid, glycine, glutamate and many other neuropeptides, which are not discussed here.