Chemicals that Act at Synapses as Neurotransmitters
Glutamate
Acetylcholine
Norepinephrine
Glycine
Endorphins
Serotonin
Histamine
Oxytocin
Cholecystokinin
Gastrin
-Aminobutyric acid
Dopamine
Epinephrine
Substance P
Vasopressin
Prolactin
Vasoactive intestinal peptide
Glucagon