f2806dee_s__Alcohol_and_Substance_Abuse__What_it_does
[Neurotransmitter] Dopamine [What drugs affect it] Every drug that affects feelings of pleasure, including Cocaine, Amphetamine, opiates, marijuana, heroin and PCP [What it does] 
Involved in regulation of movement, reward and punishment, pleasure, energy
How Drugs Affect The Brain - Addictions: Alcohol and Substance Abuse
What it does