 Linzess Linaclotide is a prescription medicine that treats IBSC in adults it's not a laxative it's a once daily pill that helps you get ahead of your symptoms it's proven to help you have more frequent and complete bowel movements and helps relieve overall abdominal symptoms belly pain discomfort and bloating these symptoms were studied in combination not individually do not give Linzess to children less than two it may harm them do not take Linzess if you have a bowel blockage get immediate help if you develop unusual or severe stomach pain especially with bloody or black stools the