Depression is the leading cause of disability worldwide, affecting more than 300 million people of all ages around the world. The most commonly used antidepressant medications are called selective serotonin reuptake inhibitors (SSRIs). Only about  one third of people with major depressive disorder achieve remission after treatment with SSRIs. When the first medication doesn’t work, the next steps are usually to switch to or add another … Continue reading FDA approves first ketamine-based antidepressant