Reported Reactions

Drugs › Serotonin and norepinephrine reuptake inhibitor

Generic name

Duloxetine hydrochloride: adverse event reports filed with FDA

8,245 reports list it as a suspect or interacting product, 2004–2026. Class: Serotonin and norepinephrine reuptake inhibitor. Also reported as Duloxetine Hydrochloride Capsule, Duloxetine Hydrochloride Delayed-Release Capsules, Duloxetine Hcl 20mg.

8,245
reports as suspect product
0% of all reports · about 376 a year
787
reports, 12 months to June 2026
701 in the 12 months before
82.5%
marked serious by the reporter
66.4% across the class
13.1%
record death among outcomes, as reported
1,077 reports · not verified by FDA

Between August 2004 and June 2026, 8,245 adverse event reports received by FDA list duloxetine hydrochloride, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (10,444) are left out of every figure here.

In the 12 months to June 2026, 787 reports listed it, up 12% from 701 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 376 reports a year and 0% of the 20,646,523 reports in the database, and 4.8% of the reports for the serotonin and norepinephrine reuptake 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 off label use (10.6%), nausea (9.8%) and drug ineffective (9.7%). A report can list several reactions, so shares add to more than 100%; 1,319 different terms appear across these reports. Off label use is recorded in 10.6% of these reports, a larger share than in the median serotonin and norepinephrine reuptake inhibitor drug (4.7%).

82.5% of the reports are marked serious by the reporter (66.4% across the class); 13.1% record death among the outcomes and 30.1% record hospitalisation, as reported. 43% of the reports came from consumers, and the largest patient age group is 45 to 64 (28.4%). 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

054107Jul 2021: 61Aug 2021: 58Sep 2021: 44Oct 2021: 73Nov 2021: 57Dec 2021: 1072022Jan 2022: 60Feb 2022: 49Mar 2022: 91Apr 2022: 81May 2022: 36Jun 2022: 81Jul 2022: 83Aug 2022: 39Sep 2022: 50Oct 2022: 75Nov 2022: 39Dec 2022: 612023Jan 2023: 35Feb 2023: 83Mar 2023: 47Apr 2023: 45May 2023: 52Jun 2023: 55Jul 2023: 68Aug 2023: 48Sep 2023: 57Oct 2023: 76Nov 2023: 53Dec 2023: 482024Jan 2024: 52Feb 2024: 43Mar 2024: 64Apr 2024: 44May 2024: 95Jun 2024: 61Jul 2024: 74Aug 2024: 31Sep 2024: 46Oct 2024: 90Nov 2024: 48Dec 2024: 512025Jan 2025: 73Feb 2025: 52Mar 2025: 70Apr 2025: 53May 2025: 44Jun 2025: 69Jul 2025: 81Aug 2025: 67Sep 2025: 103Oct 2025: 57Nov 2025: 48Dec 2025: 792026Jan 2026: 62Feb 2026: 49Mar 2026: 63Apr 2026: 71May 2026: 58Jun 2026: 49

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

03987962004: 1720042005: 492006: 552007: 5920072008: 432009: 1102010: 22220102011: 1252012: 1682013: 12820132014: 1882015: 4332016: 29820162017: 4072018: 6142019: 72020192020: 6162021: 7342022: 74520222023: 6672024: 6992025: 79620252026: 352

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Duloxetine hydrochloride reports recording the termmedian drug in serotonin and norepinephrine reuptake inhibitor

  1. Off label useused for a purpose or in a way not on the label10.6%870
  2. Nauseafeeling sick9.8%811
  3. Drug ineffectivethe medicine did not work as expected9.7%798
  4. Headachehead pain6.9%569
  5. Hyperhidrosisexcessive sweating6.4%528
  6. Dizzinesslight-headedness or unsteadiness6.2%508
  7. Toxicity to various agentspoisoning or toxic effect of one or more substances5.7%472
  8. Drug interactionan interaction between medicines5.6%464
  9. Somnolencedrowsiness5.6%459
  10. Completed suicidedeath by suicide5.1%420
  11. Fatiguetiredness4.4%362
  12. Vomitingbeing sick4.2%343
  13. Anxietyanxiety4.1%342
  14. Painpain, site not specified3.8%315
  15. Depressionlow mood3.7%309
  16. Product use in unapproved indicationused for a purpose not on the label3.7%308
  17. Nightmarenightmares3.7%307
  18. Suicidal ideationthoughts of suicide3.6%300
  19. Insomniadifficulty sleeping3.5%290
  20. Sedationdrowsiness from a medicine3.3%272
  21. Diarrhoealoose or frequent stools3.2%264
  22. Feeling abnormalfeeling odd or not right3.1%257
  23. Drug withdrawal syndromesymptoms on stopping a medicine3.1%256
  24. Falla fall3.1%256
  25. Drug intolerancethe medicine was not tolerated3.1%254
  26. Hypersensitivityan allergic-type reaction3%249
  27. Serotonin syndrometoo much serotonin activity, with agitation, fever and tremor3%246
  28. Coma2.9%236
  29. Nephrolithiasiskidney stones2.8%227
  30. Tremorshaking2.7%223

Top 30 of 1,319 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 12 drugs in the serotonin and norepinephrine reuptake 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

Death13.1%1,077
Life-threatening5.2%431
Hospitalisation (initial or prolonged)30.1%2,483
Disability3.7%305
Congenital anomaly1.2%101
Other serious53.9%4,448
Not serious17.5%1,443

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 171,115 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 20.9%74
2 to 110.2%19
12 to 170.8%66
18 to 4420%1,648
45 to 6428.4%2,341
65 to 749.9%817
75 and over11.4%944
Age not given28.3%2,336

Patient sex

Female59.8%4,934
Male28.7%2,367
Not given11.4%944

Who reported

Physician23.4%1,930
Pharmacist6.8%559
Other health professional25.1%2,072
Lawyer0.3%22
Consumer or non-health professional43%3,548
Not given1.4%114

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 31.7% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Depression1,22114.8%
Migraine4275.2%
Pain2352.9%
Back pain2192.7%
Fibromyalgia1982.4%
Anxiety1652%

The indication field is filled in by the reporter and is often blank; shares are of all 8,245 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Duloxetine hydrochloride reports
Gabapentin87610.6%
Cymbalta7599.2%
Acetaminophen7228.8%
Pregabalin6347.7%
Hydromorphone5076.1%
Codeine4946%
Zopiclone4946%
Venlafaxine hydrochloride4895.9%
Topiramate4625.6%
Amitriptyline4295.2%

Other products listed in reports where Duloxetine hydrochloride 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

MeasureDuloxetine hydrochlorideSerotonin and norepinephrine reuptake inhibitorAll reports
Reports as suspect product8,245171,11520,646,523
Share of that pool—4.8%0%
Reports, latest 12 months787—1,332,454
Marked serious82.5%66.4%57.4%
Death recorded among outcomes, per 1,000 reports13110291
Hospitalisation recorded, per 1,000 reports301241213
Consumer-filed share43%41.4%45.8%
Top term, share of reportsOff label use 10.6%median 4.7%4.1%

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."

Other drugs in the serotonin and norepinephrine reuptake inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Cymbaltabrand52,27934652.3%
Venlafaxinegeneric29,7522,34593.8%
Venlafaxine hydrochloridegeneric19,4641,02680%
Duloxetinegeneric16,1031,52985.5%
Effexorbrand13,0793660.1%
Desvenlafaxine succinategeneric12,4145929.6%
Venlafaxine hclgeneric8,4011567.3%
Pristiqbrand5,9418141.8%
Savellabrand2,9093429.4%
Desvenlafaxinegeneric1,43613578.9%
Fetzimabrand1,0927553.1%

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 Duloxetine hydrochloride reports

How many adverse event reports has FDA received for Duloxetine hydrochloride?

8,245 reports list Duloxetine hydrochloride as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 787 of them arrived in the latest 12 months. Another 10,444 list it only as a concomitant medication.

What reactions are recorded in Duloxetine hydrochloride reports?

off label use (10.6%), nausea (9.8%), drug ineffective (9.7%), headache (6.9%) and hyperhidrosis (6.4%). 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 Duloxetine hydrochloride was responsible.

How serious are the reports?

82.5% are marked serious by the reporter. Among the outcomes recorded, 13.1% of reports include death and 30.1% 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?

consumer or non-health professional (43%), other health professional (25.1%) and physician (23.4%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Duloxetine hydrochloride rising?

787 reports in the 12 months to June 2026, up 12% from 701 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 Duloxetine hydrochloride 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 Duloxetine hydrochloride?

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 Duloxetine hydrochloride as a suspect or interacting product; reports listing it only as a concomitant medication (10,444) 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.