Desipramine is a medication primarily used to treat depression and certain anxiety disorders. It belongs to a class of drugs known as tricyclic antidepressants (TCAs), which work by increasing the levels of neurotransmitters in the brain, particularly norepinephrine and serotonin. This helps improve mood and alleviate symptoms of depression. In addition to its use in treating depression, Desipramine may also be prescribed for conditions like attention-deficit hyperactivity disorder (ADHD) and chronic pain. It is important for patients to follow their healthcare provider's instructions regarding dosage and to discuss any potential side effects, which can include dry mouth, drowsiness, and weight gain.