Depression is thought to be caused by a combination of environmental, psychological, biological and genetic factors. The most enduring theories involve neurotransmitters, which are chemicals in the brain, causing an imbalance that leads to depression. Depression is a treatable illness marked by changes in mood, thought and behavior. Depression is a mood disorder that is manageable with proper treatment. Depression often accompanies bipolar disorder.
Mood drug options include different types of antidepressants. You may be prescribed serotonin and norepinephrine reuptake inhibitors. SNRIs include duloxetine (Cymbalta) and venlafaxine (Effexor). Another available antidepressant is bupropion (Wellbutrin), which manipulates dopamine. Some people with bipolar disorder require medications other than or in conjunction with mood-stabilizing medications.