Terminology: cholinergic
Receptors: cholinergic - nicotinic and muscarinic
Function: CNS learning/ PNS moving
Removal: acetylcholinesterase enzyme
Chemical class: choline derivative
Drugs/disorders: nicotine, curare, alzheimer's

acetylcholine

Terminology: dopaminergic
Receptors: dopaminergic (D1 & D2)
Function: seeking/ reward pathway
Removal: reuptake or monoamine oxidase enzyme
Chemical class: biogenic amine /catecholamine
Drugs/disorders: addiction, Parkinson's, schizophrenia

dopamine

Terminology: adrenergic
Receptors: adrenergic (α, β)
Function: CNS attention, PNS sympathetic NS
Removal: reuptake or monoamine oxidase enzyme
Chemical class: biogenic amine /catecholamine
Drugs/disorders: Wellbutrin, amphetamines, ADHD

norepinephrine, epinephrine

Terminology: serotoninergic or 5HT-ergic
Receptors: serotoninergic or 5HT-ergic
Function: liking, impacts entire brain
Removal: reuptake
Chemical class: biogenic amine NOT catecholamine
Drugs/disorders: depression, anxiety, SSRI antidepressants, hallucinogens

serotonin

Terminology: glutamatergic
Receptors: NMDA receptors
Function: neuroplasticity
Chemical class: amino acids
Drugs/disorders: ADHD, PCP, ketamine

glutamate

Terminology: GABA-ergic
Receptors: GABA-ergic
Function: anti-anxiety, chilling
Chemical class: amino acids
Drugs/disorders: alcohol, benzodiazepines

GABA

Terminology: Opioids or opiates
Receptors: opioid (Δ, Κ, μ)
Function: reduce pain transmission
Chemical class: neuropeptides
Drugs/disorders: opioid medications and opioid addictions

endogenous opioids

Terminology: cannabinoid
Receptors: cannabinoid receptors (CB1 and CB2),
Function: pain signaling; memory, eating sleeping, pleasure and food rewarding
Chemical class: endocannabinoids
Drugs/disorders: THC, CBD

Endocannabinoids (anandamide)