There are several classes of antidepressants, including:
- Selective serotonin reuptake inhibitors (SSRIs)
- Serotonin-norepinephrine reuptake inhibitors (SNRIs)
- Tricyclic antidepressants (TCAs)
- Monoamine oxidase inhibitors (MAOIs)
- Atypical antidepressants
Each class has unique mechanisms of action and side effect profiles.