Not all sadness can be treated with antidepressants.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000929:Antidepressive Agents, Tricyclic / Q000627:therapeutic use*; D003863:Depression / Q000188:drug therapy; D006117:Grief; D006801:Humans; D008875:Middle Aged; D019965:Neurocognitive Disorders / Q000188:drug therapy; D010554:Personality Disorders / Q000188:drug therapy
D000929:Antidepressive Agents, Tricyclic