Used to treat chronic immune thrombocytopenia (ITP) in adults who have had an insufficient response to previous treatments. It works by stimulating the bone marrow to produce more platelets, helping to reduce the risk of bleeding. Administered via subcutaneous injection, it is typically used when other therapies like corticosteroids or immunoglobulins have failed. Particularly beneficial for patients with low platelet counts who are at increased risk of bruising or bleeding complications.