Adenosine	Glutamate	Muscarinic
Adrenergic	Glycine	Nicotinic
Benzodiazepine	Histamine	Platelet activating factor
Calcium sensing	Imidazoline	Prostanoid
Cannabinoid	Leukotrienes	Purinergic
Dopamine	Lysophospholipid	Serotonin
Free fatty acid	Melatonin	Sigma
GABA