Ironwood Pharmaceuticals, Inc. is a biotechnology company. The Company is advancing product opportunities in areas of unmet need, including irritable bowel syndrome with constipation (IBS C), and chronic idiopathic constipation (CIC), hyperuricemia associated with uncontrolled gout, uncontrolled gastroesophageal reflux disease (uncontrolled GERD), and vascular and fibrotic diseases. It operates in human therapeutics business segment. Its product, linaclotide, is available to adult men and women suffering from IBS C or CIC in the United States under the trademarked name LINZESS, and is available to adult men and women suffering from IBS C in certain European countries under the trademarked name CONSTELLA. It is also advancing IW-3718, a gastric retentive formulation of a bile acid sequestrant with the potential to provide symptomatic relief in patients with uncontrolled GERD. Its vascular/fibrotic programs include IW-1973 and IW-1701, which targets soluble guanylate cyclase (sGC).