Reported Reactions

Drugs › Opioid agonist

Generic name

Morphine: adverse event reports filed with FDA

28,421 reports list it as a suspect or interacting product, 2004–2026. Class: Opioid agonist. Also reported as Morphine Extended Release, Morphine /00036301/, Morphine Er.

28,421
reports as suspect product
0.1% of all reports · about 1,263 a year
1,421
reports, 12 months to June 2026
1,967 in the 12 months before
90.5%
marked serious by the reporter
91.7% across the class
37.3%
record death among outcomes, as reported
10,605 reports · not verified by FDA

Between January 2004 and June 2026, 28,421 adverse event reports received by FDA list morphine, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (46,279) are left out of every figure here.

In the 12 months to June 2026, 1,421 reports listed it, down 28% from 1,967 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 1,263 reports a year and 0.1% of the 20,646,523 reports in the database, and 2.9% of the reports for the opioid agonist 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 toxicity to various agents (13.2%), drug abuse (9.5%) and pain (8.9%). A report can list several reactions, so shares add to more than 100%; 2,637 different terms appear across these reports. Toxicity to various agents is recorded in 13.2% of these reports, a larger share than in the median opioid agonist drug (5.5%).

90.5% of the reports are marked serious by the reporter (91.7% across the class); 37.3% record death among the outcomes and 29.6% record hospitalisation, as reported. 35.9% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (26.6%). 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

0183365Jul 2021: 108Aug 2021: 139Sep 2021: 168Oct 2021: 106Nov 2021: 154Dec 2021: 3652022Jan 2022: 253Feb 2022: 111Mar 2022: 244Apr 2022: 107May 2022: 120Jun 2022: 161Jul 2022: 121Aug 2022: 128Sep 2022: 152Oct 2022: 208Nov 2022: 95Dec 2022: 1792023Jan 2023: 135Feb 2023: 175Mar 2023: 124Apr 2023: 165May 2023: 162Jun 2023: 230Jul 2023: 139Aug 2023: 236Sep 2023: 148Oct 2023: 206Nov 2023: 210Dec 2023: 1602024Jan 2024: 164Feb 2024: 171Mar 2024: 170Apr 2024: 245May 2024: 162Jun 2024: 175Jul 2024: 197Aug 2024: 186Sep 2024: 144Oct 2024: 187Nov 2024: 166Dec 2024: 1752025Jan 2025: 179Feb 2025: 152Mar 2025: 182Apr 2025: 159May 2025: 117Jun 2025: 123Jul 2025: 102Aug 2025: 128Sep 2025: 119Oct 2025: 107Nov 2025: 125Dec 2025: 1232026Jan 2026: 119Feb 2026: 125Mar 2026: 116Apr 2026: 113May 2026: 126Jun 2026: 118

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

01,3042,6072004: 24420042005: 4372006: 3692007: 37520072008: 5692009: 4792010: 73820102011: 6282012: 9222013: 1,18920132014: 1,5462015: 1,1792016: 1,28020162017: 1,3042018: 1,7282019: 1,87820192020: 2,6072021: 2,5052022: 1,87920222023: 2,0902024: 2,1422025: 1,61620252026: 717

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Morphine reports recording the termmedian drug in opioid agonist

  1. Toxicity to various agentspoisoning or toxic effect of one or more substances13.2%3,756
  2. Drug abusemisuse of a medicine9.5%2,700
  3. Painpain, site not specified8.9%2,518
  4. Drug ineffectivethe medicine did not work as expected8.6%2,438
  5. Nauseafeeling sick7.1%2,008
  6. Deaththe patient died; cause not stated by this term6.6%1,878
  7. Overdosea dose above the recommended amount6.5%1,857
  8. Drug hypersensitivityan allergic-type reaction to a medicine6.1%1,722
  9. Vomitingbeing sick5.7%1,606
  10. Completed suicidedeath by suicide5.6%1,589
  11. Off label useused for a purpose or in a way not on the label5%1,433
  12. Drug dependencedependence on a medicine4.7%1,327
  13. Headachehead pain4.2%1,194
  14. Fatiguetiredness4%1,149
  15. Somnolencedrowsiness4%1,148
  16. Drug interactionan interaction between medicines3.9%1,099
  17. Constipationconstipation3.8%1,072
  18. Dyspnoeashortness of breath3.7%1,057
  19. Confusional stateconfusion3.6%1,025
  20. Malaisegeneral feeling of being unwell3.5%997
  21. Hypotensionlow blood pressure3.3%951
  22. Pyrexiafever3.2%922
  23. Anxietyanxiety3.1%882
  24. Diarrhoealoose or frequent stools3%858
  25. Falla fall3%842
  26. Dizzinesslight-headedness or unsteadiness2.9%817
  27. Weight decreasedweight loss2.9%813
  28. Rashskin rash2.8%802
  29. Pruritusitching2.8%793
  30. Abdominal painstomach or belly pain2.7%774

Top 30 of 2,637 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 42 drugs in the opioid agonist 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

Death37.3%10,605
Life-threatening8.8%2,508
Hospitalisation (initial or prolonged)29.6%8,415
Disability3%857
Congenital anomaly0.7%188
Other serious51.6%14,660
Not serious9.5%2,691

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 965,051 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 21.2%336
2 to 111.2%328
12 to 171.9%536
18 to 4425.2%7,157
45 to 6426.6%7,566
65 to 749.4%2,658
75 and over6.9%1,962
Age not given27.7%7,878

Patient sex

Female46.9%13,340
Male41.8%11,873
Not given11.3%3,208

Who reported

Physician26%7,398
Pharmacist11.1%3,167
Other health professional35.9%10,191
Lawyer1.9%549
Consumer or non-health professional20%5,671
Not given5.1%1,445

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 48.5% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Pain3,16811.1%
Analgesic therapy4411.6%
Back pain3711.3%
Spinal anaesthesia2911%
Migraine2520.9%
Procedural pain2380.8%

The indication field is filled in by the reporter and is often blank; shares are of all 28,421 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Morphine reports
Fentanyl3,43412.1%
Acetaminophen3,20511.3%
Codeine3,06210.8%
Diazepam2,7229.6%
Oxycodone2,4108.5%
Gabapentin2,1867.7%
Tramadol1,8626.6%
Alprazolam1,7386.1%
Methadone1,6926%
Pregabalin1,5995.6%

Other products listed in reports where Morphine 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

MeasureMorphineOpioid agonistAll reports
Reports as suspect product28,421965,05120,646,523
Share of that pool—2.9%0.1%
Reports, latest 12 months1,421—1,332,454
Marked serious90.5%91.7%57.4%
Death recorded among outcomes, per 1,000 reports37335791
Hospitalisation recorded, per 1,000 reports296126213
Consumer-filed share20%32.5%45.8%
Top term, share of reportsToxicity to various agents 13.2%median 5.5%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 opioid agonist class

DrugName typeReportsLatest 12 monthsMarked serious
OxyContinbrand146,26358494.6%
Oxycodone hydrochloridegeneric113,2202,59894.7%
Dilaudidbrand64,19117395.7%
Morphine sulfategeneric60,0921,57779.8%
Hydrocodone bitartrate and acetaminophengeneric59,05217096.2%
Percocetbrand57,79319895.4%
Fentanylgeneric53,6563,29286.2%
MS Continbrand52,1285598.7%
Oxycodonegeneric35,6712,85391.8%
Hysingla ERbrand30,703692.1%
Nucyntabrand27,57512790.4%
Tramadol hydrochloridegeneric27,4471,95292.4%
Oxycodone and acetaminophengeneric24,91911294%
Norcobrand24,6614293.1%
Methadonegeneric24,29390994.7%

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 Morphine reports

How many adverse event reports has FDA received for Morphine?

28,421 reports list Morphine as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 1,421 of them arrived in the latest 12 months. Another 46,279 list it only as a concomitant medication.

What reactions are recorded in Morphine reports?

toxicity to various agents (13.2%), drug abuse (9.5%), pain (8.9%), drug ineffective (8.6%) and nausea (7.1%). 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 Morphine was responsible.

How serious are the reports?

90.5% are marked serious by the reporter. Among the outcomes recorded, 37.3% of reports include death and 29.6% 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 (35.9%), physician (26%) and consumer or non-health professional (20%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Morphine rising?

1,421 reports in the 12 months to June 2026, down 28% from 1,967 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 Morphine 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 Morphine?

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 Morphine as a suspect or interacting product; reports listing it only as a concomitant medication (46,279) 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.