Anyone who really thinks that a chemical can halt depression is in dire need of psychotherapy and an education.
Depression is not caused by a chemical coursing through one’s blood vessels. Putting another chemical into one’s system does not reverse depression. It sends a chemical through one’s blood vessels that tells the body that it is not depressed, while in reality it is.
The individual remains depressed, while exhibiting external signs of happiness.
Obviously that is an abnormal situation, and leads to serious problems.
Man, there’s an authoritative comment /sarc