Understanding Depression Slideshow Take the Depression Quiz Depression Tips Slideshow Pictures Monoamine oxidase inhibitor: One of a potent class of medications used to treat depression. Abbreviated MAOI. From Depression Resources Side Effects from Depression MedicineThe Health Benefits of FriendshipCan Depression Meds Affect Your Hearing? Featured Centers When Prostate Cancer SpreadsEssential Tips to Manage DiabetesWhat Is Cystic Fibrosis? What Causes It? Health Solutions From Our Sponsors Kept Your Wisdom Teeth? Therapy at Home?