Mallinckrodt Pharmaceuticals is a company that develops, manufactures, markets, and distributes specialty pharmaceutical products and therapies. Its areas of focus include autoimmune and rare diseases in specialty areas like neurology, rheumatology, nephrology, pulmonology, ophthalmology, and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; cultured skin substitutes and gastrointestinal products. The company operates in two segments: Specialty Brands and Specialty Generics. Specialty Brands includes innovative specialty pharmaceutical brands. Specialty Generics includes niche specialty generics drugs and active pharmaceutical ingredients.