Intensive scientific research has allowed medications, psychotherapies, and other methods to be developed.
Medication
Most anti-depressants are used to normalize the brain chemicals known as neurotransmitters, such as serotonin and norepinephrine. Other anti-depressants are formulated to work with the neurotransmitter known as dopamine. Selective serotonin reuptake inhibitor (SSRI) is the most popular type of anti-depressant right now because it has fewer side effects when compared to its predecessors.
Psychotherapy
Psychotherapy is also known as "talk therapy". This type of treatment is best for mild to moderate depression. Most treatment regimens last for 10 to 20 weeks, although there are longer-term therapies that can be designed to meet the needs of an individual. There are two main types of psychotherapy, namely interpersonal therapy, and cognitive behavioral therapy.
Electroconvulsive Therapy
When medications and psychotherapy no longer work, electroconvulsive therapy (ECT) can be useful. Formerly called "shock therapy", this treatment is usually used for individuals with severe depression. Before the treatment is administered, it is important to put the patient under brief anesthesia.
Overview of Depression
Help Guide: Understanding Depression
National Institute of Mental Health: Depression
Available Treatments
National Alliance on Mental Illness: Cognitive-Behavioral Therapy
Family Doctor: Treatment with Electroconvulsive Therapy
American Psychological Association: Finding Help
Medicine Plus: Anti-depressants
Coping With Depression
Mental Health America: When Depression Enters a Relationship
Mayo Clinic: Supporting a Family Member with Depression



