Reported Reactions

Drugs

Product name as reported

Melperone: adverse event reports filed with FDA

502 reports list it as a suspect or interacting product, 2004–2026.

502
reports as suspect product
0% of all reports · about 23 a year
22
reports, 12 months to June 2026
68 in the 12 months before
99%
marked serious by the reporter
57.4% across all reports
17.3%
record death among outcomes, as reported
87 reports · not verified by FDA

502 adverse event reports received by FDA list the product name "Melperone" as reporters wrote it as a suspect or interacting product, from June 2004 to June 2026. A further 484 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, 22 reports listed it, down 68% from 68 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 23 reports a year and 0% of the 20,646,523 reports in the database. 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 (20.1%), fall (11.2%) and hypotension (9.6%). A report can list several reactions, so shares add to more than 100%; 247 different terms appear across these reports. Drug interaction is recorded in 20.1% of these reports, against 0.8% of all reports in the database.

99% of the reports are marked serious by the reporter; 17.3% record death among the outcomes and 59.4% record hospitalisation, as reported. 41% of the reports came from physicians, and the largest patient age group is 75 and over (32.7%). 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

0816Jul 2021: 2Aug 2021: 1Sep 2021: 3Oct 2021: 3Nov 2021: 0Dec 2021: 122022Jan 2022: 2Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 5Oct 2022: 16Nov 2022: 4Dec 2022: 32023Jan 2023: 15Feb 2023: 15Mar 2023: 1Apr 2023: 0May 2023: 3Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 1Oct 2023: 1Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 3Apr 2024: 1May 2024: 5Jun 2024: 0Jul 2024: 1Aug 2024: 2Sep 2024: 5Oct 2024: 8Nov 2024: 11Dec 2024: 52025Jan 2025: 9Feb 2025: 11Mar 2025: 10Apr 2025: 3May 2025: 3Jun 2025: 0Jul 2025: 9Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 22026Jan 2026: 0Feb 2026: 5Mar 2026: 3Apr 2026: 1May 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

029572004: 520042005: 42006: 52007: 420072008: 52009: 82010: 1220102011: 112012: 342013: 2120132014: 112015: 122016: 2120162017: 272018: 572019: 2220192020: 442021: 342022: 3020222023: 362024: 412025: 4720252026: 11

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Melperone reports recording the termall reports in the database

  1. Drug interactionan interaction between medicines20.1%101
  2. Falla fall11.2%56
  3. Hypotensionlow blood pressure9.6%48
  4. Somnolencedrowsiness7.8%39
  5. Electrocardiogram QT prolongeda QT prolongation on the ECG6.8%34
  6. Toxicity to various agentspoisoning or toxic effect of one or more substances6.6%33
  7. Tachycardiafast heart rate6.4%32
  8. Off label useused for a purpose or in a way not on the label5.2%26
  9. Deliriumsudden confusion5%25
  10. Atrial fibrillationan irregular heart rhythm4.8%24
  11. Drug ineffectivethe medicine did not work as expected4.8%24
  12. Insomniadifficulty sleeping4.8%24
  13. Pneumonialung infection4.8%24
  14. Vomitingbeing sick4.8%24
  15. Palpitationsawareness of the heartbeat4.6%23
  16. Epilepsy4.4%22
  17. Headachehead pain4.4%22
  18. Intentional overdosea deliberate overdose4.4%22
  19. Disturbance in attentiondifficulty concentrating4.2%21
  20. Seizurea fit or convulsion4%20
  21. Suicide attempta suicide attempt4%20
  22. Acute kidney injurysudden loss of kidney function3.8%19
  23. Condition aggravatedthe condition being treated got worse3.6%18
  24. Extrapyramidal disordermovement problems such as stiffness or tremor3.4%17
  25. Nauseafeeling sick3.4%17
  26. Diarrhoealoose or frequent stools3.2%16
  27. Hypertensionhigh blood pressure3.2%16
  28. Deaththe patient died; cause not stated by this term3%15

Top 30 of 247 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 share of all reports in the database; 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

Death17.3%87
Life-threatening16.1%81
Hospitalisation (initial or prolonged)59.4%298
Disability0.8%4
Congenital anomaly2.8%14
Other serious51.6%259
Not serious1%5

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 20,646,523 reports. 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 20.8%4
2 to 110.2%1
12 to 176%30
18 to 4417.9%90
45 to 649.4%47
65 to 7412.4%62
75 and over32.7%164
Age not given20.7%104

Patient sex

Female52.2%262
Male29.7%149
Not given18.1%91

Who reported

Physician41%206
Pharmacist9.2%46
Other health professional33.7%169
Lawyer0%0
Consumer or non-health professional13.3%67
Not given2.8%14

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 0.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Depression153%
Antipsychotic therapy91.8%
Intellectual disability91.8%
Autism spectrum disorder81.6%
Major depression61.2%
Postoperative delirium61.2%

The indication field is filled in by the reporter and is often blank; shares are of all 502 reports.

In context

MeasureMelperoneAll reports
Reports as suspect product50220,646,523
Share of that pool—0%
Reports, latest 12 months221,332,454
Marked serious99%57.4%
Death recorded among outcomes, per 1,000 reports17391
Hospitalisation recorded, per 1,000 reports594213
Consumer-filed share13.3%45.8%
Top term, share of reportsDrug interaction 20.1%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."

Questions about Melperone reports

How many adverse event reports has FDA received for Melperone?

502 reports list Melperone as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 22 of them arrived in the latest 12 months. Another 484 list it only as a concomitant medication.

What reactions are recorded in Melperone reports?

drug interaction (20.1%), fall (11.2%), hypotension (9.6%), somnolence (7.8%) and electrocardiogram QT prolonged (6.8%). 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 Melperone was responsible.

How serious are the reports?

99% are marked serious by the reporter. Among the outcomes recorded, 17.3% of reports include death and 59.4% 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?

physician (41%), other health professional (33.7%) and consumer or non-health professional (13.3%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Melperone rising?

22 reports in the 12 months to June 2026, down 68% from 68 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 Melperone 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 Melperone?

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 Melperone as a suspect or interacting product; reports listing it only as a concomitant medication (484) 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.