Depression is NOT simply a disease of insufficient neurotransmitters and the current medical model for treating it is horribly inadequate at best, and downright dangerous at worst. You can get better through nutritional and lifestyle interventions as opposed to getting a life sentence of taking prescription medication to mask symptoms (which, for the record, the scientific literature shows hardly works). Read this beautifully articulated excerpt by Kelly Brogan, MD, a respected psychiatrist and the author of the fantastic book A Mind of Your Own.
If you or anyone you know is suffering from depression, work with a healthcare practitioner trained in functional medicine to get better because we truly can help. I urge you to try dietary and lifestyle modifications before trying prescription medications. Dietary and lifestyle changes are more effective because they work to correct the underlying imbalances leading to depressive symptoms. If you're already on medication, don't worry! You can still work to re-balance the body to improve both your physical and mental health.