Glutamatergic means "related to glutamate". A glutamatergic agent (or drug) is a chemical that directly modulates the excitatory amino acid (glutamate/aspartate) system in the body or brain. Examples include excitatory amino acid receptor agonists, excitatory amino acid receptor antagonists, and excitatory amino acid reuptake inhibitors. See also Adenosinergic Adrenergic Cannabinoidergic Cholinergic Dopaminergic GABAergic GHBergic Glycinergic Histaminergic Melatonergic Monoaminergic Opioidergic Serotonergic Sigmaergic References Neurochemistry Neurotransmitters