Reported Reactions

Drugs

Product name as reported

Midomafetamine: adverse event reports filed with FDA

1,244 reports list it as a suspect or interacting product, 2010–2026.

1,244
reports as suspect product
0% of all reports · about 79 a year
404
reports, 12 months to June 2026
282 in the 12 months before
92%
marked serious by the reporter
57.4% across all reports
21.5%
record death among outcomes, as reported
267 reports · not verified by FDA

Between September 2010 and June 2026, 1,244 adverse event reports received by FDA list the product name "Midomafetamine" as reporters wrote it as a suspect or interacting product. Reports that mention it only as a concomitant medication (81) are left out of every figure here.

In the 12 months to June 2026, 404 reports listed it, up 43% from 282 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 79 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.

Reporters most often recorded drug abuse (39.8%), toxicity to various agents (14.6%) and substance use disorder (12.4%). A report can list several reactions, so shares add to more than 100%; 295 different terms appear across these reports. Drug abuse is recorded in 39.8% of these reports, against 0.4% of all reports in the database.

92% of the reports are marked serious by the reporter; 21.5% record death among the outcomes and 30.9% record hospitalisation, as reported. 35% of the reports came from physicians, and the largest patient age group is 18 to 44 (65.9%). 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

03570Jul 2021: 2Aug 2021: 10Sep 2021: 2Oct 2021: 16Nov 2021: 13Dec 2021: 222022Jan 2022: 14Feb 2022: 28Mar 2022: 20Apr 2022: 58May 2022: 8Jun 2022: 11Jul 2022: 10Aug 2022: 13Sep 2022: 18Oct 2022: 18Nov 2022: 13Dec 2022: 92023Jan 2023: 22Feb 2023: 13Mar 2023: 8Apr 2023: 21May 2023: 17Jun 2023: 15Jul 2023: 9Aug 2023: 11Sep 2023: 17Oct 2023: 11Nov 2023: 9Dec 2023: 102024Jan 2024: 14Feb 2024: 2Mar 2024: 27Apr 2024: 9May 2024: 17Jun 2024: 7Jul 2024: 25Aug 2024: 21Sep 2024: 28Oct 2024: 10Nov 2024: 7Dec 2024: 312025Jan 2025: 23Feb 2025: 18Mar 2025: 33Apr 2025: 44May 2025: 23Jun 2025: 19Jul 2025: 43Aug 2025: 70Sep 2025: 26Oct 2025: 29Nov 2025: 44Dec 2025: 342026Jan 2026: 47Feb 2026: 32Mar 2026: 16Apr 2026: 26May 2026: 18Jun 2026: 19

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

02034062010: 120102017: 12018: 520182019: 82020: 1320202021: 712022: 22020222023: 1632024: 19820242025: 4062026: 1582026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Midomafetamine reports recording the termall reports in the database

  1. Drug abusemisuse of a medicine39.8%495
  2. Toxicity to various agentspoisoning or toxic effect of one or more substances14.6%182
  3. Substance use disorder12.4%154
  4. Coma12.2%152
  5. Miosis8.7%108
  6. Mydriasis8.4%104
  7. Somnolencedrowsiness7.2%89
  8. Drug dependencedependence on a medicine7.1%88
  9. Intentional product misusedeliberate use not as intended6.8%85
  10. Suicidal ideationthoughts of suicide6.6%82
  11. Aggressionaggressive behaviour5.8%72
  12. Serotonin syndrometoo much serotonin activity, with agitation, fever and tremor5.8%72
  13. Agitationrestlessness5.7%71
  14. Tachycardiafast heart rate5.5%69
  15. Off label useused for a purpose or in a way not on the label3.9%49
  16. Overdosea dose above the recommended amount3.9%48
  17. Seizurea fit or convulsion3.8%47
  18. Suicide attempta suicide attempt3.7%46
  19. Anxietyanxiety3.5%44
  20. Hypotensionlow blood pressure3.5%43
  21. Poisoning3.5%43
  22. Loss of consciousnesspassing out3.3%41
  23. Deaththe patient died; cause not stated by this term2.9%36
  24. Bradycardiaslow heart rate2.7%34
  25. Drug interactionan interaction between medicines2.7%33

Top 30 of 295 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

Death21.5%267
Life-threatening8.5%106
Hospitalisation (initial or prolonged)30.9%385
Disability1.8%22
Congenital anomaly0%0
Other serious66.2%824
Not serious8%100

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 20.2%3
2 to 110%0
12 to 179.7%121
18 to 4465.9%820
45 to 648%99
65 to 740.2%2
75 and over0%0
Age not given16%199

Patient sex

Female24.3%302
Male62.1%772
Not given13.7%170

Who reported

Physician35%436
Pharmacist23.5%292
Other health professional24.4%304
Lawyer0.2%2
Consumer or non-health professional16.8%209
Not given0.1%1

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 27.8% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Mania221.8%
Drug abuse171.4%
Drug dependence30.2%
Anxiety20.2%
Muscle relaxant therapy20.2%
Stress20.2%

The indication field is filled in by the reporter and is often blank; shares are of all 1,244 reports.

In context

MeasureMidomafetamineAll reports
Reports as suspect product1,24420,646,523
Share of that pool—0%
Reports, latest 12 months4041,332,454
Marked serious92%57.4%
Death recorded among outcomes, per 1,000 reports21591
Hospitalisation recorded, per 1,000 reports309213
Consumer-filed share16.8%45.8%
Top term, share of reportsDrug abuse 39.8%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."

Questions about Midomafetamine reports

How many adverse event reports has FDA received for Midomafetamine?

1,244 reports list Midomafetamine as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 404 of them arrived in the latest 12 months. Another 81 list it only as a concomitant medication.

What reactions are recorded in Midomafetamine reports?

drug abuse (39.8%), toxicity to various agents (14.6%), substance use disorder (12.4%), coma (12.2%) and drug diversion (11.2%). 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 Midomafetamine was responsible.

How serious are the reports?

92% are marked serious by the reporter. Among the outcomes recorded, 21.5% of reports include death and 30.9% 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 (35%), other health professional (24.4%) and pharmacist (23.5%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Midomafetamine rising?

404 reports in the 12 months to June 2026, up 43% from 282 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 Midomafetamine 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 Midomafetamine?

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 Midomafetamine as a suspect or interacting product; reports listing it only as a concomitant medication (81) 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.