Reported Reactions

Drugs › Human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor

Generic name

Emtricitabine and tenofovir disoproxil fumarate: adverse event reports filed with FDA

3,518 reports list it as a suspect or interacting product, 2006–2026. Class: Human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor. Also reported as Emtricitabine/Tenofovir Disoproxil Fumarate, Emtricitabine / Tenofovir Disoproxil Fumarate, Emtricitabine/Tenofovir Disoproxil Fumarate Tablets.

3,518
reports as suspect product
0% of all reports · about 173 a year
5
reports, 12 months to June 2026
11 in the 12 months before
98%
marked serious by the reporter
84.3% across the class
8.5%
record death among outcomes, as reported
298 reports · not verified by FDA

3,518 adverse event reports received by FDA list emtricitabine and tenofovir disoproxil fumarate, a generic name as a suspect or interacting product, from March 2006 to June 2026. A further 257 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, 5 reports listed it, down 55% from 11 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 173 reports a year and 0% of the 20,646,523 reports in the database, and 4.3% of the reports for the human immunodeficiency virus 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.

The reactions recorded most often are maternal exposure during pregnancy (10.5%), abortion spontaneous (10.3%) and foetal exposure during pregnancy (9.9%). A report can list several reactions, so shares add to more than 100%; 548 different terms appear across these reports. Maternal exposure during pregnancy is recorded in 10.5% of these reports, a larger share than in the median human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor drug (2.9%).

98% of the reports are marked serious by the reporter (84.3% across the class); 8.5% record death among the outcomes and 28.5% record hospitalisation, as reported. 40.1% of the reports came from physicians, and the largest patient age group is 18 to 44 (36%). 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

0612Jul 2021: 4Aug 2021: 6Sep 2021: 3Oct 2021: 4Nov 2021: 8Dec 2021: 52022Jan 2022: 4Feb 2022: 7Mar 2022: 7Apr 2022: 1May 2022: 6Jun 2022: 7Jul 2022: 3Aug 2022: 0Sep 2022: 1Oct 2022: 2Nov 2022: 0Dec 2022: 22023Jan 2023: 4Feb 2023: 4Mar 2023: 0Apr 2023: 0May 2023: 12Jun 2023: 5Jul 2023: 1Aug 2023: 0Sep 2023: 0Oct 2023: 1Nov 2023: 4Dec 2023: 42024Jan 2024: 1Feb 2024: 3Mar 2024: 2Apr 2024: 1May 2024: 2Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 2Oct 2024: 4Nov 2024: 0Dec 2024: 32025Jan 2025: 0Feb 2025: 0Mar 2025: 1Apr 2025: 1May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 1Nov 2025: 0Dec 2025: 02026Jan 2026: 1Feb 2026: 0Mar 2026: 0Apr 2026: 2May 2026: 0Jun 2026: 1

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

02905802006: 1220062007: 312008: 222009: 3920092010: 632011: 1472012: 24220122013: 2032014: 2262015: 29320152016: 3312017: 3502018: 57920182019: 5802020: 2152021: 8520212022: 402023: 352024: 1820242025: 32026: 4

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Emtricitabine and tenofovir disoproxil fumarate reports recording the termmedian drug in human immunodeficiency virus nucleoside analog reverse transcriptase inhibitor

  1. Maternal exposure during pregnancythe mother took the medicine during pregnancy10.5%371
  2. Abortion spontaneousmiscarriage10.3%361
  3. Foetal exposure during pregnancythe unborn baby was exposed to the medicine9.9%349
  4. Osteoporosisthinning of the bones7%248
  5. Drug ineffectivethe medicine did not work as expected3%105
  6. Deaththe patient died; cause not stated by this term2.9%102
  7. Treatment noncompliancethe treatment was not taken as directed1.6%58
  8. Pregnancypregnancy1.6%57
  9. Exposure during pregnancythe medicine was taken during pregnancy1.6%56
  10. Congenital anomalya condition present at birth1.5%54
  11. Premature babya baby born early1.5%53
  12. Chronic kidney diseaselong-term kidney disease1.5%52
  13. Stillbirth1.4%51
  14. Diabetes mellitusdiabetes1.4%50
  15. Off label useused for a purpose or in a way not on the label1.4%48
  16. Renal impairmentreduced kidney function1.3%46
  17. Anaemialow red blood cells1.2%42
  18. Drug interactionan interaction between medicines1.1%40
  19. Hypertensionhigh blood pressure1.1%37
  20. Neoplasm malignanta cancer, type not specified1.1%37
  21. Fatiguetiredness1%35
  22. Nauseafeeling sick1%35
  23. Acute HIV infection1%34
  24. Depressionlow mood1%34
  25. Diarrhoealoose or frequent stools1%34

Top 30 of 548 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 13 drugs in the human immunodeficiency virus 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

Death8.5%298
Life-threatening4.6%162
Hospitalisation (initial or prolonged)28.5%1,002
Disability2.3%80
Congenital anomaly9.6%338
Other serious77.4%2,724
Not serious2%69

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 80,988 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 24.4%154
2 to 110.1%3
12 to 170.2%7
18 to 4436%1,265
45 to 6419.8%697
65 to 741.8%63
75 and over0.4%15
Age not given37.4%1,314

Patient sex

Female37.2%1,309
Male47.4%1,668
Not given15.4%541

Who reported

Physician40.1%1,410
Pharmacist1.3%45
Other health professional36.1%1,269
Lawyer0%1
Consumer or non-health professional19.8%695
Not given2.8%98

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 38.7% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hiv infection2,21462.9%
Prophylaxis against HIV infection53015.1%
Hepatitis b290.8%
Antiretroviral therapy280.8%
Acquired immunodeficiency syndrome200.6%
Chronic hepatitis b130.4%

The indication field is filled in by the reporter and is often blank; shares are of all 3,518 reports.

In context

MeasureEmtricitabine and tenofovir disoproxil fumarateHuman immunodeficiency virus nucleoside analog reverse transcriptase inhibitorAll reports
Reports as suspect product3,51880,98820,646,523
Share of that pool—4.3%0%
Reports, latest 12 months5—1,332,454
Marked serious98%84.3%57.4%
Death recorded among outcomes, per 1,000 reports856691
Hospitalisation recorded, per 1,000 reports285167213
Consumer-filed share19.8%18.9%45.8%
Top term, share of reportsMaternal exposure during pregnancy 10.5%median 2.9%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."

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

DrugName typeReportsLatest 12 monthsMarked serious
Truvadabrand38,63884485.7%
Zidovudinegeneric8,51012195%
Biktarvybrand6,73967754.7%
Complerabrand6,5359586.9%
Emtricitabinegeneric3,8707397.7%
Abacavirgeneric3,86710895.3%
Descovybrand3,12331846.3%
Retrovirbrand2,0261193.7%
Ziagenbrand1,554790.3%
Odefseybrand1,0353351.9%
Abacavir sulfategeneric8406698%
Emtrivabrand733994.3%

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 Emtricitabine and tenofovir disoproxil fumarate reports

How many adverse event reports has FDA received for Emtricitabine and tenofovir disoproxil fumarate?

3,518 reports list Emtricitabine and tenofovir disoproxil fumarate 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 257 list it only as a concomitant medication.

What reactions are recorded in Emtricitabine and tenofovir disoproxil fumarate reports?

maternal exposure during pregnancy (10.5%), abortion spontaneous (10.3%), foetal exposure during pregnancy (9.9%), osteoporosis (7%) and virologic failure (3.7%). 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 Emtricitabine and tenofovir disoproxil fumarate was responsible.

How serious are the reports?

98% are marked serious by the reporter. Among the outcomes recorded, 8.5% of reports include death and 28.5% 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?

physician (40.1%), other health professional (36.1%) and consumer or non-health professional (19.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Emtricitabine and tenofovir disoproxil fumarate rising?

5 reports in the 12 months to June 2026, down 55% from 11 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 Emtricitabine and tenofovir disoproxil fumarate 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 Emtricitabine and tenofovir disoproxil fumarate?

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 Emtricitabine and tenofovir disoproxil fumarate as a suspect or interacting product; reports listing it only as a concomitant medication (257) 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.