Reported Reactions

Drugs

Product name as reported

Crixivan: adverse event reports filed with FDA

584 reports list it as a suspect or interacting product, 2004–2026.

584
reports as suspect product
0% of all reports · about 26 a year
5
reports, 12 months to June 2026
0 in the 12 months before
91.4%
marked serious by the reporter
57.4% across all reports
8.7%
record death among outcomes, as reported
51 reports · not verified by FDA

Between January 2004 and June 2026, 584 adverse event reports received by FDA list the product name "Crixivan" as reporters wrote it as a suspect or interacting product. Reports that mention it only as a concomitant medication (358) are left out of every figure here.

In the 12 months to June 2026, 5 reports listed it, with none 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 26 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 foetal exposure during pregnancy (8%), nephrolithiasis (6.2%) and lipodystrophy acquired (6%). A report can list several reactions, so shares add to more than 100%; 302 different terms appear across these reports. Foetal exposure during pregnancy is recorded in 8% of these reports, against 0.4% of all reports in the database.

91.4% of the reports are marked serious by the reporter; 8.7% record death among the outcomes and 45% record hospitalisation, as reported. 38.2% of the reports came from physicians, and the largest patient age group is 18 to 44 (36.1%). 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

012Jul 2021: 0Aug 2021: 1Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 1Apr 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: 1Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 1Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 1Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 2Apr 2026: 0May 2026: 0Jun 2026: 2

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

044872004: 8720042005: 642006: 612007: 7820072008: 352009: 362010: 2020102011: 72012: 92013: 1620132014: 152015: 342016: 4820162017: 152018: 62019: 1020192020: 242021: 102022: 120222023: 12024: 12025: 120252026: 4

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Crixivan reports recording the termall reports in the database

  1. Foetal exposure during pregnancythe unborn baby was exposed to the medicine8%47
  2. Nephrolithiasiskidney stones6.2%36
  3. Lipodystrophy acquiredchanges in body fat distribution6%35
  4. Drug exposure during pregnancythe medicine was taken during pregnancy5.1%30
  5. Anaemialow red blood cells4.6%27
  6. Neutropenialow neutrophils, a type of white blood cell3.9%23
  7. Aspartate aminotransferase increasedraised liver enzyme (AST)3.6%21
  8. Pyrexiafever3.6%21
  9. Nauseafeeling sick3.4%20
  10. Premature babya baby born early3.3%19
  11. Lactic acidosisa build-up of lactic acid in the blood3.1%18
  12. Vomitingbeing sick3.1%18
  13. Diarrhoealoose or frequent stools2.9%17
  14. Alanine aminotransferase increasedraised liver enzyme (ALT)2.7%16
  15. Pregnancypregnancy2.7%16
  16. Immune reconstitution syndrome2.6%15
  17. Renal failurekidney failure2.4%14
  18. Blood cholesterol increasedraised cholesterol2.2%13
  19. Mitochondrial toxicity2.2%13
  20. Weight decreasedweight loss2.2%13
  21. Lipoatrophy2.1%12
  22. Abdominal painstomach or belly pain1.9%11
  23. Drug interactionan interaction between medicines1.9%11

Top 30 of 302 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

Death8.7%51
Life-threatening6%35
Hospitalisation (initial or prolonged)45%263
Disability6.8%40
Congenital anomaly7.7%45
Other serious51.7%302
Not serious8.6%50

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 28.9%52
2 to 111.4%8
12 to 170.2%1
18 to 4436.1%211
45 to 6427.1%158
65 to 741.7%10
75 and over0.7%4
Age not given24%140

Patient sex

Female30%175
Male63.2%369
Not given6.8%40

Who reported

Physician38.2%223
Pharmacist4.3%25
Other health professional26%152
Lawyer0%0
Consumer or non-health professional18.3%107
Not given13.2%77

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 30.5% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hiv infection29851%
Acquired immunodeficiency syndrome142.4%
Hiv test positive111.9%
Antiretroviral therapy81.4%
Prophylaxis against HIV infection40.7%
Antiviral treatment20.3%

The indication field is filled in by the reporter and is often blank; shares are of all 584 reports.

In context

MeasureCrixivanAll reports
Reports as suspect product58420,646,523
Share of that pool—0%
Reports, latest 12 months51,332,454
Marked serious91.4%57.4%
Death recorded among outcomes, per 1,000 reports8791
Hospitalisation recorded, per 1,000 reports450213
Consumer-filed share18.3%45.8%
Top term, share of reportsFoetal exposure during pregnancy 8%0.4%

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 Crixivan reports

How many adverse event reports has FDA received for Crixivan?

584 reports list Crixivan as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 5 of them arrived in the latest 12 months. Another 358 list it only as a concomitant medication.

What reactions are recorded in Crixivan reports?

foetal exposure during pregnancy (8%), nephrolithiasis (6.2%), lipodystrophy acquired (6%), drug exposure during pregnancy (5.1%) and anaemia (4.6%). 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 Crixivan was responsible.

How serious are the reports?

91.4% are marked serious by the reporter. Among the outcomes recorded, 8.7% of reports include death and 45% 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?

physician (38.2%), other health professional (26%) and consumer or non-health professional (18.3%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Crixivan rising?

5 reports in the 12 months to June 2026, with none 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 Crixivan 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 Crixivan?

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 Crixivan as a suspect or interacting product; reports listing it only as a concomitant medication (358) 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.