Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
LINZESS can cause serious side effects, including diarrhea, the most common side effect, which can sometimes be severe. Diarrhea often begins within the first 2 weeks of LINZESS treatment. Stop taking LINZESS and call your doctor right away if you get severe diarrhea during treatment with LINZESS.
Other common side effects of LINZESS include gas, stomach-area (abdominal) pain, swelling, or a feeling of fullness or pressure in your abdomen (distension). Call your doctor or go to the nearest hospital emergency room right away if you develop unusual or severe stomach-area (abdominal) pain, especially if you also have bright red, bloody stools or black stools that look like tar.
These are not all the possible side effects of LINZESS. For more information, ask your doctor or pharmacist.
LINZESS® (linaclotide) is a prescription medication used in adults to treat irritable bowel syndrome with constipation (IBS‑C) and chronic idiopathic constipation (CIC). "Idiopathic" means the cause of the constipation is unknown. It is not known if LINZESS is safe and effective in children less than 18 years of age.