Reported Reactions

Drugs › Serotonin reuptake inhibitor

Brand name · Fluoxetine hydrochloride

Prozac: adverse event reports filed with FDA

11,547 reports list it as a suspect or interacting product, 2004–2026. Class: Serotonin reuptake inhibitor. Also reported as Prozac /00724401/.

11,547
reports as suspect product
0.1% of all reports · about 513 a year
276
reports, 12 months to June 2026
274 in the 12 months before
69.5%
marked serious by the reporter
83.7% across the class
6.6%
record death among outcomes, as reported
760 reports · not verified by FDA

11,547 adverse event reports received by FDA list the brand name Prozac (fluoxetine hydrochloride) as a suspect or interacting product, from January 2004 to June 2026. A further 38,593 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, 276 reports listed it, close to the 274 of 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 513 reports a year and 0.1% of the 20,646,523 reports in the database, and 4.2% 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 MedDRA terms listed most often are foetal exposure during pregnancy (12%), drug ineffective (11.3%) and depression (7.3%). A report can list several reactions, so shares add to more than 100%; 1,739 different terms appear across these reports. Foetal exposure during pregnancy is recorded in 12% of these reports, a larger share than in the median serotonin reuptake inhibitor drug (1.5%).

69.5% of the reports are marked serious by the reporter (83.7% across the class); 6.6% record death among the outcomes and 24.8% record hospitalisation, as reported. 52.6% of the reports came from consumers, and the largest patient age group is 18 to 44 (17.8%). 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

02142Jul 2021: 19Aug 2021: 26Sep 2021: 26Oct 2021: 36Nov 2021: 17Dec 2021: 212022Jan 2022: 24Feb 2022: 23Mar 2022: 42Apr 2022: 22May 2022: 28Jun 2022: 31Jul 2022: 19Aug 2022: 22Sep 2022: 14Oct 2022: 27Nov 2022: 22Dec 2022: 232023Jan 2023: 16Feb 2023: 24Mar 2023: 19Apr 2023: 25May 2023: 26Jun 2023: 11Jul 2023: 23Aug 2023: 26Sep 2023: 32Oct 2023: 14Nov 2023: 10Dec 2023: 122024Jan 2024: 13Feb 2024: 25Mar 2024: 14Apr 2024: 20May 2024: 15Jun 2024: 26Jul 2024: 24Aug 2024: 26Sep 2024: 11Oct 2024: 23Nov 2024: 27Dec 2024: 182025Jan 2025: 26Feb 2025: 19Mar 2025: 19Apr 2025: 22May 2025: 25Jun 2025: 34Jul 2025: 10Aug 2025: 21Sep 2025: 21Oct 2025: 36Nov 2025: 22Dec 2025: 192026Jan 2026: 15Feb 2026: 18Mar 2026: 28Apr 2026: 33May 2026: 30Jun 2026: 23

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

01,0382,0752004: 48620042005: 5092006: 4572007: 33020072008: 3002009: 3712010: 34320102011: 4612012: 1,0182013: 60020132014: 6872015: 2,0752016: 53020162017: 4282018: 4092019: 52920192020: 4842021: 3322022: 29720222023: 2382024: 2422025: 27420252026: 147

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Prozac reports recording the termmedian drug in serotonin reuptake inhibitor

  1. Foetal exposure during pregnancythe unborn baby was exposed to the medicine12%1,390
  2. Drug ineffectivethe medicine did not work as expected11.3%1,301
  3. Depressionlow mood7.3%844
  4. Insomniadifficulty sleeping6.1%709
  5. Anxietyanxiety6.1%707
  6. Suicidal ideationthoughts of suicide5.5%637
  7. Drug hypersensitivityan allergic-type reaction to a medicine5.5%630
  8. Fatiguetiredness5.1%584
  9. Feeling abnormalfeeling odd or not right4.8%557
  10. Weight increasedweight gain4.7%546
  11. Drug interactionan interaction between medicines4.6%530
  12. Nauseafeeling sick4.3%501
  13. Painpain, site not specified4.1%474
  14. Off label useused for a purpose or in a way not on the label3.7%428
  15. Headachehead pain3.7%423
  16. Suicide attempta suicide attempt3.4%398
  17. Somnolencedrowsiness3.4%390
  18. Dizzinesslight-headedness or unsteadiness3.4%388
  19. Tremorshaking3%343
  20. Gait disturbancedifficulty walking2.8%318
  21. Agitationrestlessness2.7%309
  22. Vomitingbeing sick2.7%309
  23. Maternal exposure during pregnancythe mother took the medicine during pregnancy2.6%300
  24. Falla fall2.6%298
  25. Dyspnoeashortness of breath2.6%296
  26. Malaisegeneral feeling of being unwell2.6%296
  27. Astheniaweakness or lack of energy2.5%286
  28. Irritabilityirritability2.4%281
  29. Weight decreasedweight loss2.4%279
  30. Aggressionaggressive behaviour2.3%260

Top 30 of 1,739 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

Death6.6%760
Life-threatening5.7%663
Hospitalisation (initial or prolonged)24.8%2,858
Disability3.4%396
Congenital anomaly13%1,499
Other serious45.8%5,291
Not serious30.5%3,517

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 22.9%330
2 to 111.2%136
12 to 174.3%502
18 to 4417.8%2,054
45 to 6417.4%2,012
65 to 745.2%601
75 and over3.5%402
Age not given47.7%5,510

Patient sex

Female59.6%6,883
Male24.1%2,786
Not given16.3%1,878

Who reported

Physician21.9%2,529
Pharmacist2.2%255
Other health professional10.7%1,234
Lawyer5.7%658
Consumer or non-health professional52.6%6,079
Not given6.9%792

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 70.4% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Depression2,96825.7%
Anxiety4043.5%
Major depression2221.9%
Bipolar disorder1361.2%
Obsessive-compulsive disorder1261.1%
Antidepressant therapy340.3%

The indication field is filled in by the reporter and is often blank; shares are of all 11,547 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Prozac reports
Cymbalta9228%
Bupropion hydrochloride7226.3%
Abilify6435.6%
Xanax6015.2%
Zoloft4994.3%
Paxil3433%
Zyprexa3222.8%
Venlafaxine hydrochloride2922.5%
Seroquel2582.2%
Lexapro2522.2%

Other products listed in reports where Prozac 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

MeasureProzacSerotonin reuptake inhibitorAll reports
Reports as suspect product11,547273,11520,646,523
Share of that pool—4.2%0.1%
Reports, latest 12 months276—1,332,454
Marked serious69.5%83.7%57.4%
Death recorded among outcomes, per 1,000 reports6615991
Hospitalisation recorded, per 1,000 reports248321213
Consumer-filed share52.6%30.8%45.8%
Top term, share of reportsFoetal exposure during pregnancy 12%median 1.5%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 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%
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%
Trazodone hydrochloridegeneric4,21336482.2%

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 Prozac reports

How many adverse event reports has FDA received for Prozac?

11,547 reports list Prozac as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 276 of them arrived in the latest 12 months. Another 38,593 list it only as a concomitant medication.

What reactions are recorded in Prozac reports?

foetal exposure during pregnancy (12%), drug ineffective (11.3%), depression (7.3%), insomnia (6.1%) and anxiety (6.1%). 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 Prozac was responsible.

How serious are the reports?

69.5% are marked serious by the reporter. Among the outcomes recorded, 6.6% of reports include death and 24.8% 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?

consumer or non-health professional (52.6%), physician (21.9%) and other health professional (10.7%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Prozac rising?

276 reports in the 12 months to June 2026, close to the 274 of 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 Prozac 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 Prozac?

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 Prozac as a suspect or interacting product; reports listing it only as a concomitant medication (38,593) 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.