OpenClaim

Linaclotide Side Effects

The most commonly reported side effects of linaclotide include diarrhoea, off label use, and constipation, based on 27,644 FDA adverse event reports from 2004 to 2025. 16.6% of reports found the drug to be ineffective.

Linaclotide side effects

Percentages show how often each reaction appears relative to total reports for linaclotide.

1
Diarrhoea17.9%4,950
2
Drug Ineffective16.6%4,576
3
Off Label Use12.2%3,369
4
Constipation6.9%1,916
5
Nausea5.5%1,514
6
Abdominal Distension4.4%1,204
7
Fatigue4.3%1,188
8
Abdominal Pain4.1%1,138
9
Headache3.9%1,072
10
Abdominal Pain Upper3.5%959
11
Pain3.4%945
12
Dizziness3.2%877
13
Dyspnoea2.7%734
14
Inappropriate Schedule Of Product Administration2.7%733
15
Flatulence2.6%729

These are voluntary reports and do not establish that linaclotide caused these reactions.

Report severity

39.1%Serious10,800 reports
17.0%Hospitalizations4,694 reports
4.8%Fatal1,331 reports

Seriousness is determined by the reporter, not by OpenClaim.

Linaclotide drug interactions

Other drugs that appear in adverse event reports alongside linaclotide. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Sodium-oxybate3.3%914
2
Lenalidomide2.0%555
3
Dupilumab1.8%504
4
Adalimumab1.3%372
5
Pimavanserin1.2%341
6
Omeprazole1.2%331
7
Esomeprazole1.1%309
8
Levodopa1.0%290
9
Polyethylene-glycol-33501.0%283
10
Carbidopa0.9%250
11
Pantoprazole-sodium0.9%243
12
Dimethyl0.8%210
13
Lansoprazole0.7%202
14
Dalfampridine0.7%180
15
Pregabalin0.6%170

Taken alongside

1
Ergocalciferol12.5%3,443
2
Acetaminophen12.3%3,392
3
Levothyroxine-sodium10.7%2,970
4
Gabapentin10.1%2,790
5
Aspirin9.8%2,717
6
Omeprazole9.8%2,712
7
Albuterol9.3%2,565
8
Atorvastatin-calcium7.9%2,197
9
Pantoprazole-sodium7.8%2,159
10
Ondansetron7.7%2,138
11
Fluticasone7.7%2,124
12
Furosemide6.9%1,918
13
Amlodipine6.2%1,723
14
Oxycodone6.0%1,652
15
Polyethylene-glycol-33505.7%1,578

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports linaclotide side effects

65.7% of linaclotide adverse event reports involve female patients and 25.9% involve male patients. The largest age group is adult at 50%. These figures reflect who reports side effects, not underlying risk.

Sex

Female65.7%
Male25.9%
Unknown8.4%

Age group

< 20.4%
2–110.5%
12–171.8%
18–6449.6%
65+47.7%

What is linaclotide used for

Conditions and purposes for which patients were taking linaclotide when the adverse event was reported.

Abdominal AdhesionsAbdominal DiscomfortAbdominal DistensionAbdominal HerniaAbdominal PainAbdominal Pain LowerAbdominal Pain UpperAbdominal RigidityAbnormal FaecesAcute Kidney InjuryAdjuvant TherapyAdverse EventAnaemiaAnal FistulaAnal Incontinence

Showing 15 of 434 indications

Linaclotide brand names and reporting trend

Linaclotide is sold under the brand name Linzess.

Brand names

Linzess4,298

Quarterly reports (20042025)

2005201520202025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking linaclotide with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.