Used primarily in the treatment of fibromyalgia, this chemical helps reduce pain, fatigue, and tenderness associated with the condition. It works by increasing the levels of certain neurotransmitters in the brain involved in pain signaling and mood regulation. It is also prescribed for major depressive disorder in some countries, offering an alternative for patients who do not respond to other antidepressants. The compound improves daily functioning and quality of life in chronic pain and depression by restoring chemical imbalances in the central nervous system.