Yeah like I said, it comes from a different perspective based on the differences between our languages. The closest thing to what I mean (but not exactly the same) would be the word 'narcotic'. Here it would literally mean addictive substances that fuck with your brain - things like marijuana, cocaine, heroine and such are amongst them, alcohol is not.
I assumed that it works in a similar way in America, I googled, found out I was wrong, I understand now. However alcohol is still legal in America, marijuana is not. Even if definitions are different, regulations are similar.