Reported Reactions

Drugs

Product name as reported

Prazepam: adverse event reports filed with FDA

1,556 reports list it as a suspect or interacting product, 2004–2026.

1,556
reports as suspect product
0% of all reports · about 71 a year
159
reports, 12 months to June 2026
141 in the 12 months before
99.7%
marked serious by the reporter
57.4% across all reports
9.6%
record death among outcomes, as reported
150 reports · not verified by FDA

Between July 2004 and June 2026, 1,556 adverse event reports received by FDA list the product name "Prazepam" as reporters wrote it as a suspect or interacting product. Reports that mention it only as a concomitant medication (1,322) are left out of every figure here.

In the 12 months to June 2026, 159 reports listed it, up 13% from 141 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 71 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 coma (17%), somnolence (14.3%) and poisoning deliberate (12.3%). A report can list several reactions, so shares add to more than 100%; 392 different terms appear across these reports. Coma is recorded in 17% of these reports, against 0.2% of all reports in the database.

99.7% of the reports are marked serious by the reporter; 9.6% record death among the outcomes and 57.6% record hospitalisation, as reported. 41.1% of the reports came from physicians, and the largest patient age group is 18 to 44 (31.2%). 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

01835Jul 2021: 20Aug 2021: 9Sep 2021: 13Oct 2021: 13Nov 2021: 21Dec 2021: 192022Jan 2022: 7Feb 2022: 19Mar 2022: 12Apr 2022: 18May 2022: 16Jun 2022: 17Jul 2022: 3Aug 2022: 4Sep 2022: 9Oct 2022: 7Nov 2022: 10Dec 2022: 242023Jan 2023: 27Feb 2023: 10Mar 2023: 11Apr 2023: 9May 2023: 17Jun 2023: 22Jul 2023: 13Aug 2023: 13Sep 2023: 11Oct 2023: 10Nov 2023: 10Dec 2023: 112024Jan 2024: 24Feb 2024: 8Mar 2024: 16Apr 2024: 11May 2024: 15Jun 2024: 8Jul 2024: 10Aug 2024: 8Sep 2024: 8Oct 2024: 15Nov 2024: 7Dec 2024: 102025Jan 2025: 13Feb 2025: 13Mar 2025: 23Apr 2025: 19May 2025: 10Jun 2025: 5Jul 2025: 6Aug 2025: 8Sep 2025: 14Oct 2025: 24Nov 2025: 13Dec 2025: 72026Jan 2026: 18Feb 2026: 6Mar 2026: 15Apr 2026: 35May 2026: 3Jun 2026: 10

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

0931862004: 620042005: 92006: 142007: 520072008: 112009: 222010: 720102011: 322012: 362013: 1120132014: 52015: 172016: 1120162017: 292018: 1472019: 17220192020: 1862021: 1442022: 14620222023: 1642024: 1402025: 15520252026: 87

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Prazepam reports recording the termall reports in the database

  1. Coma17%264
  2. Somnolencedrowsiness14.3%223
  3. Toxicity to various agentspoisoning or toxic effect of one or more substances10.3%160
  4. Drug abusemisuse of a medicine10.2%158
  5. Hypotensionlow blood pressure7.8%122
  6. Confusional stateconfusion6.5%101
  7. Intentional overdosea deliberate overdose4.9%76
  8. Overdosea dose above the recommended amount4.7%73
  9. Drug dependencedependence on a medicine4.6%71
  10. Suicide attempta suicide attempt4.4%68
  11. Miosis3.5%54
  12. Intentional product misusedeliberate use not as intended3.3%52
  13. Respiratory depressionslow or shallow breathing3.3%52
  14. Falla fall3.3%51
  15. Vomitingbeing sick3.3%51
  16. Tachycardiafast heart rate3.2%50
  17. Bradycardiaslow heart rate3.1%48
  18. Loss of consciousnesspassing out3%46
  19. Condition aggravatedthe condition being treated got worse2.9%45
  20. Pneumonia aspirationlung infection from breathing in material2.8%43
  21. Substance use disorder2.8%43
  22. Electrocardiogram QT prolongeda QT prolongation on the ECG2.6%41
  23. Mydriasis2.5%39
  24. Disturbance in attentiondifficulty concentrating2.4%37
  25. Hypotonia2.3%36

Top 30 of 392 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

Death9.6%150
Life-threatening15.8%246
Hospitalisation (initial or prolonged)57.6%896
Disability2.7%42
Congenital anomaly1.3%21
Other serious44.2%687
Not serious0.3%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 21.3%21
2 to 110.4%6
12 to 174.4%69
18 to 4431.2%486
45 to 6429%452
65 to 748.8%137
75 and over9.3%145
Age not given15.4%240

Patient sex

Female57.2%890
Male33.8%526
Not given9%140

Who reported

Physician41.1%639
Pharmacist27.4%426
Other health professional20.8%324
Lawyer0.1%2
Consumer or non-health professional8.9%138
Not given1.7%27

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
Anxiety20313%
Depression774.9%
Toxicity to various agents624%
Poisoning deliberate563.6%
Suicide attempt392.5%
Intentional overdose322.1%

The indication field is filled in by the reporter and is often blank; shares are of all 1,556 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Prazepam reports
Zopiclone23114.8%
Paroxetine16910.9%
Alprazolam16110.3%
Venlafaxine1489.5%
Quetiapine1449.3%
Acetaminophen1419.1%
Mirtazapine1217.8%
Diazepam1177.5%
Oxazepam1076.9%
Cocaine1066.8%

Other products listed in reports where Prazepam 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

MeasurePrazepamAll reports
Reports as suspect product1,55620,646,523
Share of that pool—0%
Reports, latest 12 months1591,332,454
Marked serious99.7%57.4%
Death recorded among outcomes, per 1,000 reports9691
Hospitalisation recorded, per 1,000 reports576213
Consumer-filed share8.9%45.8%
Top term, share of reportsComa 17%0.2%

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 Prazepam reports

How many adverse event reports has FDA received for Prazepam?

1,556 reports list Prazepam as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 159 of them arrived in the latest 12 months. Another 1,322 list it only as a concomitant medication.

What reactions are recorded in Prazepam reports?

coma (17%), somnolence (14.3%), poisoning deliberate (12.3%), toxicity to various agents (10.3%) and drug abuse (10.2%). 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 Prazepam was responsible.

How serious are the reports?

99.7% are marked serious by the reporter. Among the outcomes recorded, 9.6% of reports include death and 57.6% 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?

physician (41.1%), pharmacist (27.4%) and other health professional (20.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Prazepam rising?

159 reports in the 12 months to June 2026, up 13% from 141 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 Prazepam 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 Prazepam?

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 Prazepam as a suspect or interacting product; reports listing it only as a concomitant medication (1,322) 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.