Mood-enhancing drugs, such as antidepressants, are medications that are used to treat depression and other mental health conditions. Antidepressants are the most commonly prescribed type of mood-enhancing drug, and they work by increasing the levels of certain chemicals in the brain that are responsible for regulating mood. They can help to reduce symptoms of depression, such as feelings of sadness, low energy, and difficulty concentrating. Other types of mood-enhancing drugs include antipsychotics, which are used to treat schizophrenia and bipolar disorder, and anxiolytics, which are used to treat anxiety disorders.