Ironwood Pharmaceuticals, Inc.

Ironwood Pharmaceuticals makes drugs to treat digestive system problems and rare diseases. Their main product is linaclotide, which they sell under the brand names Linzess and Constella to treat constipation and irritable bowel syndrome in both children and adults. The company is also developing other medications for conditions like bladder pain, endometriosis, and short bowel syndrome. They work with large pharmaceutical companies like AbbVie, AstraZeneca, and Astellas to develop and sell their treatments around the world.