A melatonergic agent (or drug) is a chemical which functions to directly modulate the melatonin system in the body or brain.
Examples include melatonin receptor agonists and melatonin receptor antagonists.
See also Adenosinergic Adrenergic Cannabinoidergic Cholinergic Dopaminergic GABAergic Glycinergic Histaminergic Monoaminergic Opioidergic Serotonergic
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