A New Treatment Approach for Major Depressive Disorder Based Upon Targeting Monoamine Oxidase A (MAO-A)

All subjects are getting the combined treatment of a selective serotonin reuptake inhibitor and the dietary supplement. There are two possible selective serotonin reuptake inhibitor treatments but the dietary supplement remains the same. No subjects are receiving the selective serotonin reuptake inhibitor alone and no subjects are receiving the dietary supplement alone. The dietary supplement is called n-acetylcysteine.