Antidepressants help treat more than just the emotional and psychological issues of depression. The medications can also improve other aspects of health, since depression often has physical complications such as appetite loss, insomnia, and fatigue. There are four classes of antidepressants: SSRIs, SNRIs, tricyclic and tetracyclic antidepressants, and monoamine oxidase inhibitors. There are also “atypical” antidepressants that have unique properties. Side effects vary depending on the drug. But all antidepressants take time to work, from two weeks to a month.
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