Ironwood Pharmaceuticals, Inc., a pharmaceutical company, engages in the research, development, and commercialization of human therapeutic products. The company markets linaclotide, a guanylate cyclase type-C agonist for the treatment of adult men and women suffering from irritable bowel syndrome with constipation (IBS-C) or chronic idiopathic constipation (CIC) under the LINZESS name in…More the United States and Constella name in the European Union.