What Is Dopamine?
By Lindsey KonkelMedically Reviewed by Rosalyn Carson-DeWitt, MD
Some street drugs can mimic the effects of dopamine, an important neurotransmitter.
Dopamine is a neurotransmitter that helps send signals in the brain.
It's also classified as a catecholamine, a type of hormone that includes norepinephrine and epinephrine (adrenaline).
https://www.everydayhealth.com/dopamine/