* Heroin
* Meth
* Crack
* Cocaine
* Cannabis
* Cigarettes
* Alcohol
* Coffee
* Sugar
There is also fat and salt which while necessary to life, are also habit-forming in the excess and negatively affect humans.
Pray tell where you would like to draw the line of which drugs you would ban for the benefit of society.
[0] https://en.wikipedia.org/wiki/Drug
> A drug is any chemical substance that when consumed causes a change in an organism's physiology, including its psychology, if applicable