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This page presents data from the FDA Adverse Event Reporting System (FAERS) and the FDA-approved drug label. A report submitted to FAERS does not prove a drug caused the reported event. Always consult a healthcare provider about medications.

Fluoxetine (fluoxetine hydrochloride)

Last updated: June 21, 2026
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Fluoxetine is the brand name for fluoxetine hydrochloride. According to the FDA-approved label, Fluoxetine is indicated for the treatment of: Acute and maintenance treatment of Major Depressive Disorder [see Clinical Studies (14.1) ] . Acute and maintenance treatment of obsessions and compulsions in patients with Obsessive Compulsive Disorder (OCD) [see Clinical Studies. FAERS contains 124,898 submissions naming this drug from 2003 through 2026; the top three reactions cited are drug ineffective, nausea, and fatigue.

Most-Reported Reactions

Counts of the reactions most often cited in FAERS submissions that named Fluoxetine. Inclusion here does not establish causation - submitters describe what was observed, not what was confirmed. One submission can list several reactions, so the totals exceed the report count.

DRUG INEFFECTIVE 8,042 (6.4%) NAUSEA 7,331 (5.9%) FATIGUE 7,271 (5.8%) HEADACHE 6,249 (5.0%) DEPRESSION 5,854 (4.7%) ANXIETY 5,695 (4.6%) DIZZINESS 5,103 (4.1%) DIARRHOEA 5,049 (4.0%) OFF LABEL USE 4,988 (4.0%) PAIN 4,941 (4.0%) DRUG INTERACTION 4,842 (3.9%) VOMITING 4,697 (3.8%) DYSPNOEA 4,623 (3.7%) TOXICITY TO VARIOUS AGENTS 4,269 (3.4%) FALL 4,254 (3.4%)

Patient Demographics

Patient sex and age across the FAERS submissions that named Fluoxetine. Percentages here are computed only from submissions where these fields were filled in - many leave them blank.

By Sex

Female Male Unknown

By Age Group

0-17 18-44 45-64 65+

Severity Outcomes

Severity flags recorded across the 124,898 FAERS submissions that named Fluoxetine. Each bar shows the count of those reports carrying that flag. A single case can carry more than one (a hospitalization that became life-threatening, for example), so these bars are independent rates - they don't sum to 100%. Inclusion of a case under any flag does not establish that the drug caused the outcome.

DEATH 12,792 (10.2%) HOSPITALIZATION 38,990 (31.2%) LIFE-THREATENING 6,466 (5.2%) DISABLING 4,686 (3.8%)

Submissions Per Quarter

Quarterly count of FAERS submissions that named Fluoxetine. Ups and downs on this chart can track prescribing volume, news cycles, or shifts in how reports get filed, rather than the drug becoming safer or more dangerous.

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

From the FDA-Approved Label

Excerpts from the official FDA-approved prescribing information for Fluoxetine. This is the authoritative source on indications, warnings, and known adverse reactions.

Indications

1 INDICATIONS AND USAGE Fluoxetine is indicated for the treatment of: Acute and maintenance treatment of Major Depressive Disorder [see Clinical Studies (14.1) ] . Acute and maintenance treatment of obsessions and compulsions in patients with Obsessive Compulsive Disorder (OCD) [see Clinical Studies (14.2) ] . Acute and maintenance treatment of binge-eating and vomiting behaviors in patients with moderate to severe Bulimia Nervosa [see Clinical Studies (14.3) ] . Acute treatment of Panic Disorder, with or without agoraphobia [see Clinical Studies (14.4) ] . Fluoxetine and Olanzapine in Combination is indicated for the treatment of: Acute treatment of depressive episodes associated with Bipolar I Disorder. Fluoxetine monotherapy is not indicated for the treatment of depressive episodes associated with Bipolar I Disorder. When using Fluoxetine and olanzapine in combination, also refer to the Clinical Studies section of the package insert for Symbyax ® . Fluoxetine capsules are a selective serotonin reuptake inhibitor indicated for: Acute and maintenance treatment of Major Depressive Disorder (MDD) ( 1 ) Acute and maintenance treatment of Obsessive Compulsive Disorder (OCD) ( 1 ) Acut...

Adverse Reactions (from label)

6 ADVERSE REACTIONS The following adverse reactions are discussed in more detail in other sections of the labeling: Suicidal Thoughts and Behaviors in Children, Adolescents, and Young Adults [see Boxed Warning and Warnings and Precautions (5.1) ] Serotonin Syndrome [see Warnings and Precautions (5.2) ] Allergic Reactions and Rash [see Warnings and Precautions (5.3) ] Screening Patients for Bipolar Disorder and Monitoring for Mania/Hypomania [see Warnings and Precautions (5.4) ] Seizures [see Warnings and Precautions (5.5) ] Altered Appetite and Weight [see Warnings and Precautions (5.6) ] Abnormal Bleeding [see Warnings and Precautions (5.7) ] Angle-Closure Glaucoma [see Warnings and Precautions (5.8) ] Hyponatremia [see Warnings and Precautions (5.9) ] Anxiety and Insomnia [see Warnings and Precautions (5.10) ] QT Prolongation [see Warnings and Precautions (5.11) ] Potential for Cognitive and Motor Impairment [see Warnings and Precautions (5.13) ] Discontinuation Adverse Reactions [see Warnings and Precautions (5.15) ] When using fluoxetine and olanzapine in combination, also refer to the Adverse Reactions section of the package insert for Symbyax. (continues in label)

FDA label effective date: 2019-02-01

Disclaimer

AdverseEvent.ai is not affiliated with the FDA. Adverse-event counts come from the FDA Adverse Event Reporting System (FAERS). Drug labels come from the FDA drug label dataset. A report submitted to FAERS does not prove a drug caused the reported event — always consult a healthcare provider about medications. This site is for informational purposes only and is not medical advice.