Ironwood Pharmaceuticals is a biotechnology company that develops and commercializes medicines for gastrointestinal and cardiovascular diseases. The company was founded in 1998 and is headquartered in Cambridge, Massachusetts. Ironwood Pharmaceuticals' flagship product is Linzess, a treatment for irritable bowel syndrome with constipation and chronic idiopathic constipation. The company also has a pipeline of other gastrointestinal and cardiovascular products in development. Ironwood Pharmaceuticals is committed to improving patient outcomes and has a strong focus on research and development.