Major Depressive Disorder (MDD): To help improve mood, sleep, and appetite. Generalized Anxiety Disorder (GAD): To reduce persistent feelings of nervousness. Neuropathic Pain: Specifically for diabetic peripheral neuropathy. Fibromyalgia: Chronic widespread muscle and bone pain. Chronic Musculoskeletal Pain: Such as chronic lower back pain or osteoarthritis.

It works by increasing the levels of two chemical messengers in the brain: Serotonin and Norepinephrine. Serotonin helps regulate mood and anxiety. Norepinephrine is involved in mood but also plays a critical role in the body's natural "descending" pain suppression pathways in the spinal cord. By boosting both, Duloxetine helps balance emotions and "mutes" pain signals.

Common: Nausea, dry mouth, sleepiness, or insomnia. Physical: Increased sweating, constipation, or decreased appetite. Sexual: Decreased libido or difficulty achieving orgasm. Cardiovascular: A slight increase in blood pressure or heart rate.