Other therapies of depression

Psychotherapy or talk therapy
Electroconvulsive therapy (ECT)
Light therapy for winter depression
Vagous nerve stimulation therapy
Transcranial magnetic stimulation

Antidepressant drugs

Depression ,in psychiatry, a symptom of mood disorder characterized by intense feeling of loss, sadness, hopelessness, failure and rejection.
Types :
1.Reactive : 60%
2.Endogenous 20-25%
3.Bipolar 15-20%
Pathophysiology
Amine hypothesis
Due to decrease functional amine dependent synaptic transmission
Medical evidence suggest that depressive states may be connected to deficiencies in the neurotransmitters norepinephrine and Serotonin. Serotonin is often referred to as the body’s natural mood altering drug & changes in serotonin levels can quickly alter mood
Classification of antidepressant drugs
Tricyclic antidepressant
Monoamine oxidase inhibitors (MAO-AI)
Selective serotonin reuptake inhibitors (SSRI)
Atypical antidepressant

Is depression causes weight gain ?

Weight gain can also occur as a side effect of antidepressant drugs.
Stress may be a cause of weight gain. Due to stress more stress hormones like cortisol releases, which increase appetite.
Depression and weight gain frequently co-occur. It becomes a vicious cycle when you eat out of boredom, loneliness, isolation or any number of emotional reasons and you gain weight