they don't repair something that is not broken. Depression happens for various reasons... and chemical imbalance is a mere theory, not proven.

They do alter brain though, so you cannot stop cold turkey, because your brain is not naturally producing some shtuff anymore... so you need to ween off slowly, for your brain to readjust.

Also, if you have any trouble in your life... drugs may give you strenght to face it, but will not solve it. Sometimes you have to work on your life to help yourself out of depression.

Hard to say. Different for each person.

Did I stress it enough not to cold turkey?