Reported Reactions

Drugs › Human immunodeficiency virus 1 Non-Nucleoside analog reverse transcriptase inhibitor

Brand name · Etravirine

Intelence: adverse event reports filed with FDA

1,752 reports list it as a suspect or interacting product, 2007–2026. Class: Human immunodeficiency virus 1 Non-Nucleoside analog reverse transcriptase inhibitor.

1,752
reports as suspect product
0% of all reports · about 93 a year
14
reports, 12 months to June 2026
44 in the 12 months before
86.8%
marked serious by the reporter
79.6% across the class
10.2%
record death among outcomes, as reported
179 reports · not verified by FDA

1,752 adverse event reports received by FDA list the brand name Intelence (etravirine) as a suspect or interacting product, from August 2007 to June 2026. A further 939 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 14 reports listed it, down 68% from 44 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 93 reports a year and 0% of the 20,646,523 reports in the database, and 6% of the reports for the human immunodeficiency virus 1 Non-Nucleoside analog reverse transcriptase inhibitor class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded lipodystrophy acquired (7.5%), foetal exposure during pregnancy (5.9%) and death (4.6%). A report can list several reactions, so shares add to more than 100%; 517 different terms appear across these reports. Lipodystrophy acquired is recorded in 7.5% of these reports, a larger share than in the median human immunodeficiency virus 1 Non-Nucleoside analog reverse transcriptase inhibitor drug (2.3%).

86.8% of the reports are marked serious by the reporter (79.6% across the class); 10.2% record death among the outcomes and 27.4% record hospitalisation, as reported. 33% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (32.7%). 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

01224Jul 2021: 2Aug 2021: 5Sep 2021: 3Oct 2021: 3Nov 2021: 7Dec 2021: 32022Jan 2022: 5Feb 2022: 6Mar 2022: 20Apr 2022: 4May 2022: 11Jun 2022: 7Jul 2022: 7Aug 2022: 2Sep 2022: 0Oct 2022: 3Nov 2022: 3Dec 2022: 22023Jan 2023: 0Feb 2023: 3Mar 2023: 3Apr 2023: 3May 2023: 1Jun 2023: 2Jul 2023: 0Aug 2023: 1Sep 2023: 24Oct 2023: 6Nov 2023: 1Dec 2023: 22024Jan 2024: 2Feb 2024: 1Mar 2024: 0Apr 2024: 0May 2024: 1Jun 2024: 0Jul 2024: 1Aug 2024: 5Sep 2024: 0Oct 2024: 23Nov 2024: 5Dec 2024: 02025Jan 2025: 3Feb 2025: 1Mar 2025: 0Apr 2025: 2May 2025: 0Jun 2025: 4Jul 2025: 1Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 2Dec 2025: 02026Jan 2026: 0Feb 2026: 1Mar 2026: 3Apr 2026: 4May 2026: 1Jun 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

01022032007: 320072008: 482009: 11520092010: 982011: 8320112012: 1542013: 13120132014: 1202015: 20320152016: 1312017: 11320172018: 692019: 12120192020: 1112021: 7420212022: 702023: 4620232024: 382025: 1320252026: 11

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Intelence reports recording the termmedian drug in human immunodeficiency virus 1 non-nucleoside analog reverse transcriptase inhibitor

  1. Lipodystrophy acquiredchanges in body fat distribution7.5%131
  2. Foetal exposure during pregnancythe unborn baby was exposed to the medicine5.9%104
  3. Deaththe patient died; cause not stated by this term4.6%81
  4. Mitochondrial toxicity4.5%78
  5. Anaemialow red blood cells4.3%75
  6. Diplopiadouble vision4.3%75
  7. Progressive external ophthalmoplegia4%70
  8. Exposure during pregnancythe medicine was taken during pregnancy3.7%65
  9. Pyrexiafever3.6%63
  10. Rashskin rash3.4%59
  11. Maternal exposure during pregnancythe mother took the medicine during pregnancy3.2%56
  12. Nauseafeeling sick2.9%50
  13. Drug interactionan interaction between medicines2.7%48
  14. Premature babya baby born early2.6%46
  15. Drug ineffectivethe medicine did not work as expected2.4%42
  16. Diarrhoealoose or frequent stools2.3%40
  17. Hypertensionhigh blood pressure2.2%39
  18. Off label useused for a purpose or in a way not on the label2.2%38
  19. Dysphagiadifficulty swallowing2.1%36
  20. Vomitingbeing sick2%35
  21. Neuropathy peripheralnerve damage in hands or feet1.9%33
  22. Abdominal painstomach or belly pain1.8%31
  23. Headachehead pain1.8%31
  24. Treatment failurethe treatment did not work1.7%30
  25. Fatiguetiredness1.7%29
  26. Arthralgiajoint pain1.6%28
  27. Hepatic steatosisfatty liver1.6%28

Top 30 of 517 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 median share across the 7 drugs in the human immunodeficiency virus 1 non-nucleoside analog reverse transcriptase inhibitor class; 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

Death10.2%179
Life-threatening4.6%80
Hospitalisation (initial or prolonged)27.4%480
Disability4.6%81
Congenital anomaly5.7%99
Other serious62%1,086
Not serious13.2%232

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 29,070 reports in the class. 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 22.9%50
2 to 110.2%4
12 to 170.9%15
18 to 4414.3%250
45 to 6432.7%573
65 to 745%88
75 and over0.9%15
Age not given43.2%757

Patient sex

Female26.4%462
Male59.3%1,039
Not given14.3%251

Who reported

Physician31.1%544
Pharmacist11.1%194
Other health professional33%578
Lawyer0%0
Consumer or non-health professional22.8%400
Not given2.1%36

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 32.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hiv infection1,10663.1%
Antiretroviral therapy261.5%
Hiv test positive191.1%
Maternal exposure timing unspecified150.9%
Antiviral treatment140.8%
Acquired immunodeficiency syndrome40.2%

The indication field is filled in by the reporter and is often blank; shares are of all 1,752 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Intelence reports
Prezista70240.1%
Isentress69439.6%
Norvir55631.7%
Truvada36220.7%
Ritonavir31217.8%
Lamivudine27515.7%
Zidovudine21212.1%
Kaletra19311%
Viread19110.9%
Raltegravir1518.6%

Other products listed in reports where Intelence is a suspect product, whatever their own role. Co-listing means the two were recorded together; it says nothing about either product's part in the event. Only the 2,500 most-reported names are counted here.

In context

MeasureIntelenceHuman immunodeficiency virus 1 Non-Nucleoside analog reverse transcriptase inhibitorAll reports
Reports as suspect product1,75229,07020,646,523
Share of that pool—6%0%
Reports, latest 12 months14—1,332,454
Marked serious86.8%79.6%57.4%
Death recorded among outcomes, per 1,000 reports10211591
Hospitalisation recorded, per 1,000 reports274171213
Consumer-filed share22.8%14.4%45.8%
Top term, share of reportsLipodystrophy acquired 7.5%median 2.3%0%

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."

Other drugs in the human immunodeficiency virus 1 non-nucleoside analog reverse transcriptase inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Efavirenzgeneric9,15512097.2%
Nevirapinegeneric7,9186597.2%
Rilpivirinegeneric6,68587739.3%
Etravirinegeneric1,2851791.1%
Julucabrand1,1814640.6%
Edurantbrand1,0943467.5%

Ordered by report count for navigation only. 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." A brand and its generic are separate rows because reporters name them separately.

Questions about Intelence reports

How many adverse event reports has FDA received for Intelence?

1,752 reports list Intelence as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 14 of them arrived in the latest 12 months. Another 939 list it only as a concomitant medication.

What reactions are recorded in Intelence reports?

lipodystrophy acquired (7.5%), foetal exposure during pregnancy (5.9%), death (4.6%), eyelid ptosis (4.5%) and mitochondrial toxicity (4.5%). 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 Intelence was responsible.

How serious are the reports?

86.8% are marked serious by the reporter. Among the outcomes recorded, 10.2% of reports include death and 27.4% 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 (33%), physician (31.1%) and consumer or non-health professional (22.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Intelence rising?

14 reports in the 12 months to June 2026, down 68% from 44 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 Intelence 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 Intelence?

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 Intelence as a suspect or interacting product; reports listing it only as a concomitant medication (939) 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.