I'm unclear, do you have a question? Dopamine is the general action of addictive drugs from Opiates to stimulants, but cocaine's effects are FAR wider ranging than just dopamine in the brain. Maybe you know that, so I don't want to lecture... but did you have a query?
I saw a good video, I thought that it would help others, so I posted it. But no I had no question, my motivation was to help others.
OK, I'd just add: cocaine is dangerous for a number of other reasons as well, not the least of which is the risk of an adverse cardiac event. Beyond that, I wasn't accusing, just wondering if you needed info.