Not actual patients.
INDICATIONS AND USAGE
LINZESS® (linaclotide) is indicated for the treatment of:
- irritable bowel syndrome with constipation (IBS-C) in adults and pediatric patients 7 years of age and older
- chronic idiopathic constipation (CIC) in adults
- functional constipation (FC) in pediatric patients 6 years of age and older
IMPORTANT SAFETY INFORMATION
WARNING:
RISK OF SERIOUS DEHYDRATION IN PEDIATRIC PATIENTS LESS THAN 2 YEARS OF AGE LINZESS is contraindicated in patients less than 2 years of age; in nonclinical studies in neonatal mice, administration of a single, clinically relevant adult oral dose of linaclotide caused deaths due to dehydration.
Contraindications
- LINZESS is contraindicated in patients less than 2 years of age due to the risk of serious dehydration.
- LINZESS is contraindicated in patients with known or suspected mechanical gastrointestinal obstruction.
Warnings and Precautions
Risk of Serious Dehydration in Pediatric Patients Less Than 2 Years of Age
- LINZESS is contraindicated in patients less than 2 years of age. In neonatal mice, linaclotide increased fluid secretion as a consequence of age-dependent elevated guanylate cyclase (GC-C) agonism, which was associated with increased mortality within the first 24 hours due to dehydration. There was no age-dependent trend in GC-C intestinal expression in a clinical study of children 2 to less than 18 years of age; however, there are insufficient data available on GC-C intestinal expression in children less than 2 years of age to assess the risk of developing diarrhea and its potentially serious consequences in these patients.
Diarrhea
- In adults, diarrhea was the most common adverse reaction in LINZESS-treated patients in the pooled IBS-C and CIC double-blind placebo-controlled trials. The incidence of diarrhea was similar in the IBS-C and CIC populations. Severe diarrhea was reported in 2% of adult patients with IBS-C or CIC treated with LINZESS 145 mcg or 290 mcg once daily, and in <1% of adult patients with CIC treated with LINZESS 72 mcg once daily. In pediatric patients, diarrhea was also the most common adverse reaction of LINZESS-treated patients in IBS-C and FC clinical trials. In two double-blind trials, diarrhea was reported in 4% of pediatric patients 6 to 17 years of age with FC treated with LINZESS 72 mcg once daily, and 7% and 8% of pediatric patients 7 to 17 years of age with IBS-C treated with LINZESS 145 mcg and 290 mcg once daily, respectively. In clinical trials, severe diarrhea was reported in one pediatric patient with FC treated with LINZESS 72 mcg once daily and in one pediatric patient with IBS-C treated with LINZESS at a dose higher than the recommended 145 mcg once daily dosage for IBS-C. If severe diarrhea occurs, dosing should be suspended and the patient rehydrated.
Common Adverse Reactions (incidence ≥2% and greater than placebo)
- In IBS-C or CIC adult patients: diarrhea, abdominal pain, flatulence, and abdominal distension.
- In FC or IBS-C pediatric patients: diarrhea.
Please see full Prescribing Information, including Boxed Warning, or visit https://www.rxabbvie.com/pdf/linzess_pi.pdf
US-LIN-250120
References: 1. LINZESS. [package insert]. North Chicago, IL: AbbVie Inc. 2. Data on file. AbbVie Inc.
Ironwood® and its three-leaf design are registered trademarks of Ironwood Pharmaceuticals, Inc. LINZESS® and its design are registered trademarks of Ironwood Pharmaceuticals, Inc. © 2026 AbbVie and Ironwood Pharmaceuticals, Inc. All rights reserved.
The information provided in this site is intended for U.S. healthcare professionals only. The products described on this site may have different product labeling in countries outside the United States.
For Pediatric patients (ages 7+) with IBS-C,
Move them along the path to
relief with LINZESS
The first and only FDA-approved prescription
treatment for IBS-C in pediatric patients
7 years of age and older.1,2