One difference between cocaine and the amphetamines is that

Cocaine is a drug that is considered and known for being addictive and dangerous,which is used for illegal purposes.
Amphetamines is a synthetic form of mood changing medicine,which is legally a drug can is used to treat children that has ADD and adults for narcolepsy,which medical experts believe the usage is safer than cocaine of course.
Hope this helps!
I apologize if there's any errors in wording or punctuation.

what terms are there?