I'm drinking a very powerful homeopathic solution right now. In fact, I'm drinking an entire glass of it. We have a big bottle of the stuff sitting on top of a machine that keeps it cool for us. It quenches my thirst and cures every disease known to man. Without it I would die in a few days, literally.
Man water is great stuff.
Anyway.... I would be the results would be different for major depression. And also, this is the great thing about modern medical science - studies are done so that conclusions can be made. Maybe Citalopram is not that effective and we should use something else, okay fine. We'll improve on it, make something that is more effective with less side effects. Thats what modern medicine does - it continually tries to better itself.