I think the need for "chemical imbalances" and psychmeds as "vitamins for the brain" comes from the way we view drugs as a society. As something evil. And then when we go for our mood altering fix, we gotta find excuses (I drink it cause I enjoy the taste, I have chemical imbalance in my brain and this medicine that corrects the imbalance...). Why not admit we put stuff in our bodies to make ourselves feel better? Humanity done that for ages. Animals do it.

Better doesn't necesarily mean high... just better. If your drugs work for you, whatever it is and you are aware of the risks, why not?

(as for what is legal or illegal and if it's for "reason". I don't believe it. EU tries hard to regulate herbs. Let me tell you that where I live melatonin is illegal. Apparently our law regulators don't lose sleep or they have access to much better dope. If you buy OTC medicine usually the Czech and Slovak instructions about max daily doses say something else... it will never cease to baffle me)