OpenClaim

Tenapanor Side Effects

The most commonly reported side effects of tenapanor include diarrhoea, death, and hospitalisation, based on 2,784 FDA adverse event reports from 2004 to 2025. 1.7% of reports found the drug to be ineffective.

Tenapanor side effects

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

1
Diarrhoea36.4%1,014
2
Death8.8%245
3
Hospitalisation6.2%172
4
Inappropriate Schedule Of Product Administration6.0%167
5
Off Label Use4.5%124
6
Product Use Issue3.8%107
7
Therapy Interrupted3.3%93
8
Nausea3.3%92
9
Abdominal Pain2.5%69
10
Vomiting2.4%67
11
Abdominal Distension2.4%66
12
Product Use In Unapproved Indication2.3%64
13
Constipation2.0%56
14
Abdominal Pain Upper2.0%55
15
Dyspnoea1.8%50

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

Report severity

54.8%Serious1,526 reports
31.2%Hospitalizations868 reports
15.1%Fatal421 reports

Seriousness is determined by the reporter, not by OpenClaim.

Tenapanor drug interactions

Other drugs that appear in adverse event reports alongside tenapanor. 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
Ticagrelor0.7%20
2
Adalimumab0.7%19
3
Daprodustat0.7%19
4
Dupilumab0.6%18
5
Sodium-oxybate0.4%10
6
Simvastatin0.3%9
7
Dabigatran-etexilate-mesylate0.3%9
8
Pregabalin0.3%8
9
Linaclotide0.3%8
10
Metformin0.3%7
11
Rivaroxaban0.3%7
12
Furosemide0.3%7
13
Vedolizumab0.3%7
14
Insulin0.2%6
15
Aspirin0.2%6

Taken alongside

1
Sevelamer6.8%189
2
Aspirin5.9%164
3
Atorvastatin-calcium5.7%160
4
Amlodipine5.2%145
5
Ergocalciferol5.0%139
6
Carvedilol4.7%131
7
Metoprolol4.4%123
8
Levothyroxine-sodium4.2%116
9
Omeprazole4.1%113
10
Furosemide3.7%103
11
Acetaminophen3.6%101
12
Gabapentin3.6%100
13
Calcium-acetate3.4%96
14
Insulin3.3%92
15
Pantoprazole-sodium3.2%90

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 tenapanor side effects

45.8% of tenapanor adverse event reports involve female patients and 44.3% involve male patients. The largest age group is adult at 57%. These figures reflect who reports side effects, not underlying risk.

Sex

Female45.8%
Male44.3%
Unknown9.8%

Age group

< 20.0%
2–110.5%
12–170.2%
18–6457.0%
65+42.3%

What is tenapanor used for

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

Analgesic TherapyAntipyresisAbdominal DistensionAbdominal Pain UpperAnal FissureAutonomic NeuropathyBack PainBlood Pressure AbnormalBlood Pressure IncreasedBlood Phosphorus AbnormalBlood Phosphorus DecreasedBlood Phosphorus IncreasedBowel Movement IrregularityCancer PainCardiac Disorder

Showing 15 of 73 indications

Tenapanor brand names and reporting trend

Tenapanor is sold under the brand name Xphozah.

Brand names

Xphozah692

Quarterly reports (20042025)

20042010201520202025

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

Taking tenapanor with another medication?

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