Reported Reactions

Drugs › Serotonin reuptake inhibitor

Generic name

Fluoxetine hcl: adverse event reports filed with FDA

1,013 reports list it as a suspect or interacting product, 2004–2026. Class: Serotonin reuptake inhibitor.

1,013
reports as suspect product
0% of all reports · about 45 a year
4
reports, 12 months to June 2026
5 in the 12 months before
90.7%
marked serious by the reporter
83.7% across the class
21.8%
record death among outcomes, as reported
221 reports · not verified by FDA

1,013 adverse event reports received by FDA list fluoxetine hcl, a generic name as a suspect or interacting product, from January 2004 to June 2026. A further 4,323 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, 4 reports listed it, down 20% from 5 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 45 reports a year and 0% of the 20,646,523 reports in the database, and 0.4% of the reports for the serotonin reuptake 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 drug interaction (10.2%), completed suicide (9.8%) and drug exposure during pregnancy (6.2%). A report can list several reactions, so shares add to more than 100%; 345 different terms appear across these reports. Drug interaction is recorded in 10.2% of these reports, a larger share than in the median serotonin reuptake inhibitor drug (7.9%).

90.7% of the reports are marked serious by the reporter (83.7% across the class); 21.8% record death among the outcomes and 32.8% record hospitalisation, as reported. 34.8% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (30.4%). 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

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

0951892004: 3720042005: 622006: 5620062007: 242008: 6020082009: 1852010: 6720102011: 1702012: 18920122013: 302014: 2420142015: 162016: 1620162017: 182018: 1920182019: 182020: 820202021: 52025: 520252026: 4

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Fluoxetine hcl reports recording the termmedian drug in serotonin reuptake inhibitor

  1. Drug interactionan interaction between medicines10.2%103
  2. Completed suicidedeath by suicide9.8%99
  3. Drug exposure during pregnancythe medicine was taken during pregnancy6.2%63
  4. Serotonin syndrometoo much serotonin activity, with agitation, fever and tremor5.3%54
  5. Depressionlow mood4.8%49
  6. Anxietyanxiety4.6%47
  7. Suicide attempta suicide attempt4.2%43
  8. Maternal exposure during pregnancythe mother took the medicine during pregnancy4%41
  9. Cardiac arrestthe heart stopped3.9%40
  10. Toxicity to various agentspoisoning or toxic effect of one or more substances3.6%36
  11. Drug ineffectivethe medicine did not work as expected3.3%33
  12. Overdosea dose above the recommended amount3.3%33
  13. Suicidal ideationthoughts of suicide3.3%33
  14. Insomniadifficulty sleeping3.1%31
  15. Nauseafeeling sick3%30
  16. Dizzinesslight-headedness or unsteadiness2.9%29
  17. Tremorshaking2.9%29
  18. Agitationrestlessness2.8%28
  19. Drug hypersensitivityan allergic-type reaction to a medicine2.8%28
  20. Vomitingbeing sick2.8%28
  21. Condition aggravatedthe condition being treated got worse2.7%27
  22. Respiratory arrestbreathing stopped2.7%27
  23. Abortion spontaneousmiscarriage2.6%26
  24. Aggressionaggressive behaviour2.5%25
  25. Deaththe patient died; cause not stated by this term2.5%25
  26. Fatiguetiredness2.5%25
  27. Somnolencedrowsiness2.5%25
  28. Dyspnoeashortness of breath2.1%21
  29. Feeling abnormalfeeling odd or not right2.1%21
  30. Headachehead pain2.1%21

Top 30 of 345 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 21 drugs in the serotonin 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

Death21.8%221
Life-threatening6.8%69
Hospitalisation (initial or prolonged)32.8%332
Disability3.4%34
Congenital anomaly6.6%67
Other serious50%507
Not serious9.3%94

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 273,115 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 22.2%22
2 to 111.2%12
12 to 174.1%42
18 to 4430.4%308
45 to 6425.4%257
65 to 745.5%56
75 and over4%41
Age not given27.1%275

Patient sex

Female57.1%578
Male31.5%319
Not given11.5%116

Who reported

Physician32.9%333
Pharmacist3.9%40
Other health professional34.8%353
Lawyer0.2%2
Consumer or non-health professional16.8%170
Not given11.4%115

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 36.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Depression25725.4%
Anxiety242.4%
Major depression212.1%
Obsessive-compulsive disorder131.3%
Borderline personality disorder80.8%
Anxiety disorder40.4%

The indication field is filled in by the reporter and is often blank; shares are of all 1,013 reports.

In context

MeasureFluoxetine hclSerotonin reuptake inhibitorAll reports
Reports as suspect product1,013273,11520,646,523
Share of that pool—0.4%0%
Reports, latest 12 months4—1,332,454
Marked serious90.7%83.7%57.4%
Death recorded among outcomes, per 1,000 reports21815991
Hospitalisation recorded, per 1,000 reports328321213
Consumer-filed share16.8%30.8%45.8%
Top term, share of reportsDrug interaction 10.2%median 7.9%0.8%

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 reuptake inhibitor class

DrugName typeReportsLatest 12 monthsMarked serious
Sertralinegeneric44,8143,71493%
Citalopramgeneric30,4141,16995.2%
Fluoxetinegeneric28,3191,73493%
Paxilbrand24,1935657%
Escitalopramgeneric24,1761,83992.5%
Zoloftbrand21,31129565.5%
Paroxetinegeneric16,2041,17093%
Prozacbrand11,54727669.5%
Sertraline hydrochloridegeneric11,0771,08085.2%
Citalopram hydrobromidegeneric10,67523496.4%
Lexaprobrand9,42431864.4%
Paroxetine hydrochloridegeneric8,93526884.2%
Sertraline hclgeneric7,592067.7%
Fluoxetine hydrochloridegeneric6,20964891.9%
Escitalopram oxalategeneric5,06339992.8%

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 Fluoxetine hcl reports

How many adverse event reports has FDA received for Fluoxetine hcl?

1,013 reports list Fluoxetine hcl as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 4 of them arrived in the latest 12 months. Another 4,323 list it only as a concomitant medication.

What reactions are recorded in Fluoxetine hcl reports?

drug interaction (10.2%), completed suicide (9.8%), drug exposure during pregnancy (6.2%), serotonin syndrome (5.3%) and depression (4.8%). 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 Fluoxetine hcl was responsible.

How serious are the reports?

90.7% are marked serious by the reporter. Among the outcomes recorded, 21.8% of reports include death and 32.8% 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 (34.8%), physician (32.9%) and consumer or non-health professional (16.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Fluoxetine hcl rising?

4 reports in the 12 months to June 2026, down 20% from 5 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 Fluoxetine hcl 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 Fluoxetine hcl?

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 Fluoxetine hcl as a suspect or interacting product; reports listing it only as a concomitant medication (4,323) 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.