Reported Reactions

Drugs

Product name as reported

Xphozah: adverse event reports filed with FDA

2,294 reports list it as a suspect or interacting product, 2024–2026.

2,294
reports as suspect product
0% of all reports · about 920 a year
1,521
reports, 12 months to June 2026
640 in the 12 months before
38.4%
marked serious by the reporter
57.4% across all reports
15.4%
record death among outcomes, as reported
354 reports · not verified by FDA

Between January 2024 and June 2026, 2,294 adverse event reports received by FDA list the product name "Xphozah" as reporters wrote it as a suspect or interacting product. Reports that mention it only as a concomitant medication (9) are left out of every figure here.

In the 12 months to June 2026, 1,521 reports listed it, up 138% from 640 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Over its reporting history that is about 920 reports a year and 0% of the 20,646,523 reports in the database. How many people take it is not in the data, so a count is not a rate of occurrence.

The MedDRA terms listed most often are diarrhoea (45.6%), death (10.9%) and inappropriate schedule of product administration (7.9%). A report can list several reactions, so shares add to more than 100%; 190 different terms appear across these reports. Diarrhoea is recorded in 45.6% of these reports, against 3.1% of all reports in the database.

38.4% of the reports are marked serious by the reporter; 15.4% record death among the outcomes and 23.5% record hospitalisation, as reported. 66.2% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (16.1%). FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event."

Reports by month, five years

0149297Jul 2021: 0Aug 2021: 0Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 6Feb 2024: 3Mar 2024: 6Apr 2024: 42May 2024: 19Jun 2024: 57Jul 2024: 20Aug 2024: 24Sep 2024: 102Oct 2024: 23Nov 2024: 27Dec 2024: 992025Jan 2025: 35Feb 2025: 74Mar 2025: 38Apr 2025: 83May 2025: 55Jun 2025: 60Jul 2025: 168Aug 2025: 37Sep 2025: 233Oct 2025: 26Nov 2025: 44Dec 2025: 2602026Jan 2026: 31Feb 2026: 44Mar 2026: 297Apr 2026: 60May 2026: 51Jun 2026: 270

Reports by the month FDA received them. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases.

By year received

05571,1132024: 42820242025: 1,11320252026: 7532026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Xphozah reports recording the termall reports in the database

  1. Diarrhoealoose or frequent stools45.6%1,045
  2. Deaththe patient died; cause not stated by this term10.9%251
  3. Inappropriate schedule of product administrationthe product was taken at the wrong times7.9%182
  4. Hospitalisationadmission to hospital7%160
  5. Product use issuea problem in how the product was used3.8%87
  6. No adverse eventno adverse event was reported3.4%77
  7. Treatment noncompliancethe treatment was not taken as directed2.7%63
  8. Wrong technique in product usage processthe product was used in the wrong way2.7%63
  9. Nauseafeeling sick2.7%61
  10. Drug intolerancethe medicine was not tolerated2.3%53
  11. Abdominal discomfortstomach discomfort2.3%52
  12. Off label useused for a purpose or in a way not on the label2%46
  13. Vomitingbeing sick1.9%44
  14. Constipationconstipation1.5%35
  15. Falla fall1.5%34
  16. Cardiac arrestthe heart stopped1.4%33
  17. Product use in unapproved indicationused for a purpose not on the label1.3%30
  18. Abdominal painstomach or belly pain1.3%29
  19. Abdominal pain upperupper stomach pain1.1%26
  20. Blood phosphorus increased1.1%25
  21. Astheniaweakness or lack of energy1%23
  22. Fatiguetiredness1%22
  23. Dehydrationdehydration0.9%21
  24. Decreased appetitereduced appetite0.8%18
  25. Dizzinesslight-headedness or unsteadiness0.8%18
  26. Dyspnoeashortness of breath0.8%18

Top 30 of 190 MedDRA preferred terms recorded across these reports, with a plain-language gloss where one is available. One report can record several terms. The hollow bar is the share of all reports in the database; it describes the reports, not the patients. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Outcomes recorded

Death15.4%354
Life-threatening0.5%11
Hospitalisation (initial or prolonged)23.5%539
Disability0.2%4
Congenital anomaly0%0
Other serious11.4%261
Not serious61.6%1,413

Outcome flags as the reporter set them; a report can carry several, and "other serious" is FDA's own category for serious reports outside the named outcomes. Grey bar: all 20,646,523 reports. FDA has not verified any outcome and states that the reports "cannot be used to estimate the incidence of these events."

Patients and reporters

Patient age

Under 20.1%2
2 to 110.1%2
12 to 170.1%2
18 to 446.7%154
45 to 6416.1%370
65 to 745.7%131
75 and over3.8%88
Age not given67.3%1,545

Patient sex

Female35.9%824
Male55.9%1,282
Not given8.2%188

Who reported

Physician3.9%89
Pharmacist4.6%106
Other health professional66.2%1,519
Lawyer0%0
Consumer or non-health professional24.9%571
Not given0.4%9

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 100% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Chronic kidney disease88138.4%
Hyperphosphataemia74032.3%
End stage renal disease401.7%
Multiple drug therapy80.3%
Phosphorus metabolism disorder80.3%
Blood phosphorus increased60.3%

The indication field is filled in by the reporter and is often blank; shares are of all 2,294 reports.

In context

MeasureXphozahAll reports
Reports as suspect product2,29420,646,523
Share of that pool—0%
Reports, latest 12 months1,5211,332,454
Marked serious38.4%57.4%
Death recorded among outcomes, per 1,000 reports15491
Hospitalisation recorded, per 1,000 reports235213
Consumer-filed share24.9%45.8%
Top term, share of reportsDiarrhoea 45.6%3.1%

Shares are of reports, not of patients treated. The number of people taking a product is not in the data, so none of these figures is a rate, and differences between columns reflect who takes a product, who reports and how long it has been sold. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Questions about Xphozah reports

How many adverse event reports has FDA received for Xphozah?

2,294 reports list Xphozah as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 1,521 of them arrived in the latest 12 months. Another 9 list it only as a concomitant medication.

What reactions are recorded in Xphozah reports?

diarrhoea (45.6%), death (10.9%), inappropriate schedule of product administration (7.9%), hospitalisation (7%) and product use issue (3.8%). These are MedDRA preferred terms coded from what the reporter described; a report can list several, and a term's presence is not a finding that Xphozah was responsible.

How serious are the reports?

38.4% are marked serious by the reporter. Among the outcomes recorded, 15.4% of reports include death and 23.5% include hospitalisation. FDA has not verified these outcomes and states that the reports "cannot be used to estimate the incidence" of the events.

Who files these reports?

other health professional (66.2%), consumer or non-health professional (24.9%) and pharmacist (4.6%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Xphozah rising?

1,521 reports in the 12 months to June 2026, up 138% from 640 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Counts also move with how many people take a product, its time on the market and publicity.

Do these reports show that Xphozah was responsible for these reactions?

No. FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event." The reaction may relate to the condition being treated, to other medicines, or to something else.

Is this a list of the side effects of Xphozah?

No. It is a count of what was reported to FDA. The adverse reactions observed in clinical studies are printed on the FDA-approved label, which a pharmacist or clinician can go through with you.

How do I report an adverse event?

Consumers and health professionals can report to FDA through MedWatch (Form FDA 3500 online, or 1-800-FDA-1088), or to the manufacturer, which must pass reports on. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Drug Adverse Event (FAERS) bulk export released 28 Sep 2026, which holds reports FDA received through 30 Jun 2026. Drug names are as reported, resolved to the brand or generic name on the FDA label where openFDA's harmonisation matched them; classes are the pharmacologic class (EPC) from the label and the National Drug Code Directory of 17 Sep 2026. A report counts here when it lists Xphozah as a suspect or interacting product; reports listing it only as a concomitant medication (9) are excluded. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.