Pet Drug Reports

Diazepamadverse event reports that FDA received

Active ingredient

The Green Book lists no brand name for exactly this active ingredient.

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand.

Read this first. FDA says this about the data:

An API dataset query result cannot be used to estimate the risk associated with the product or compare one drug or device product with another. When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event. This dataset should not be the sole source of information for clinical decision-making or other assumptions about the safety or effectiveness of a product. The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine publishes these words. Source: Adverse Event Reports for Animal Drugs and Devices, read on . The data have the reports that FDA received through .

This page is not veterinary advice. For an animal that is ill, speak to a veterinarian.

Contacting a veterinarianHow to report to FDA

From July 1993 to June 2026, FDA received 979 adverse event reports that name a drug with diazepam as its active ingredient. Of the 979 reports, 683 (69.8%) are about dogs. 265 reports are about cats (27.1%).

In January to March 2026, FDA received 9 reports that name this drug. The signs that appear in the largest number of the 979 reports are "Seizure NOS", "Lethargy" and "Death". A report is not proof that a drug caused a sign.

Reports that name this drug fell by 23.9% in the 12 months to June 2026, compared with the 12 months before. Reports for all animal drugs fell by 4.6% in the same periods. The newest months can get more reports in a later update. Reports about cats are 27.1% of the reports that name this drug, and 11% of all reports.

Since the last update of the FDA data

The latest update of the FDA data, recorded on , changed no count of this page.

January to March 2026 is the latest closed quarter in the data. In that quarter FDA received 9 reports that name diazepam: 4 dog, 5 cat, 0 horse, 0 other or not given.

All updatesFeed of updates (RSS)

Signs that the reports list

A sign is a coded term from the report. The words in brackets are a plain gloss of the term. The percentage is the share of the 979 reports that list the sign. One report can list more than one sign.

The sign that is in the largest number of the reports comes first.

  1. Seizure NOS[seizure, type not specified]25%245 reports
  2. Lethargy[unusually tired or inactive]16%157 reports
  3. Death13.4%131 reports
  4. Death by euthanasia[the animal was euthanized]13.2%129 reports
  5. Vomiting13.1%128 reports
  6. Other abnormal test result NOS[abnormal laboratory result, type not specified]11.3%111 reports
  7. Anorexia[not eating]9.5%93 reports
  8. Ataxia[unsteady, uncoordinated movement]8.9%87 reports
  9. Behavioural disorder NOS[behaviour change, type not specified]8%78 reports
  10. Vocalisation[crying out or unusual noise]7.7%75 reports
  11. Elevated alanine aminotransferase (ALT)[a liver enzyme above the normal range]6.6%65 reports
  12. Elevated blood urea nitrogen (BUN)[a kidney value above the normal range]6%59 reports
  13. Lack of efficacy - NOS[the product did not have the expected effect]6%59 reports
  14. Hypothermia[low body temperature]5.7%56 reports
Show the next 16 signs
  1. Cardiac arrest5.4%53 reports
  2. Diarrhoea[diarrhea]4.9%48 reports
  3. Not eating4.9%48 reports
  4. Weight loss4.8%47 reports
  5. Fever4.7%46 reports
  6. Leucocytosis NOS[high white blood cell count]4.7%46 reports
  7. Tachycardia[fast heart rate]4.7%46 reports
  8. Decreased appetite4.6%45 reports
  9. Bradycardia[slow heart rate]4.5%44 reports
  10. Twitching4.5%44 reports
  11. Abnormal radiograph finding4.3%42 reports
  12. Neutrophilia[high neutrophil count]4.3%42 reports
  13. Anaemia NOS[low red blood cell count]4.2%41 reports
  14. Elevated creatinine[a kidney value above the normal range]4.1%40 reports
  15. Emesis[vomiting]4.1%40 reports
  16. Lateral recumbency[lying on the side, unable to rise]4%39 reports

The list shows 30 of 1,011 coded signs. A report is not proof that a drug caused a sign. Download all signs (CSV)

Reports by species

The share is of all 979 reports that name diazepam. The other reports give a different species or no species.

Reports for each month, Jul 2021 to Jun 2026

Dog147 reports. Largest count in one month: 13 (Jun 2025)
Cat84 reports. Largest count in one month: 6 (Aug 2022)
Horse12 reports

No chart: no month has 5 or more reports.

Other or not given5 reports

No chart: no month has 5 or more reports.

The month is the month in which FDA received the report. Each chart has its own scale. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

Reports by year

  • Dog
  • Cat
  • Horse
  • Other or not given
Reports that name diazepam, by the year in which FDA received them and by species
YearDogCatHorseOther or not givenAll species
20261060016
202547163167
202430211153
202331213156
202224162143
20211974232
202034120147
201938150154
201858180177
201770171088
201666330099
201558200179
201455120168
2013792800107
201253121167
201140004
201001001
200911002
200811002
200700011
200620002
200501001
200332005
200201001
199903014
199600101
199500101
199301001

2026 has the reports that FDA received through Jun 2026. Download the years (CSV)

What the reports record

Outcome at the time of the report

  • Recovered/Normal29.5%289
  • Recovered with Sequela[recovered, with a lasting effect]1.7%17
  • Ongoing26.9%263
  • Died14.2%139
  • Euthanized12.9%126
  • Outcome Unknown14.7%144

An outcome in a report is not proof that the drug caused it. The person who sends the report gives the outcome. Each share is of the 979 reports that name diazepam.

A report about more than one animal can have more than one outcome.

Kind of report

  • Safety issue90.9%890
  • Lack of expected effectiveness2.6%25
  • Both safety and lack of expected effectiveness4.5%44
  • Manufacturing or product defect2%20
  • Other0%0

947 reports say if the event was serious. 68.1% of them have the serious flag. The person who sends the report sets the flag.

Show age, weight, breed and route

Age of the animal

  • Under 1 year14.5%142
  • 1 to 3 years19.9%195
  • 4 to 7 years23.8%233
  • 8 to 11 years21%206
  • 12 years and over16.1%158
  • Age not given4.6%45

Weight of the animal

  • Under 5 kg (11 lb)29.5%289
  • 5 to 9.9 kg (11 to 22 lb)22.4%219
  • 10 to 24.9 kg (22 to 55 lb)18.3%179
  • 25 to 44.9 kg (55 to 99 lb)19.5%191
  • 45 kg and over (99 lb and over)5%49
  • Weight not given5.3%52

Breed, where the report gives one breed

A breed with many animals has many reports.

Route in the report

  • Intravenous26.8%262
  • Oral8.6%84
  • Parenteral4.1%40
  • Rectal1.3%13
  • Intramuscular1.1%11
  • Other0.4%4

Each bar is on a scale of 0 to 100%.

Approved animal drugs with this active ingredient (FDA Green Book)

This section is reference data. It has no report count.

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand.

Applications in the Green Book of 2 Nov 2026, pioneer applications (NADA) first
Brand nameActive ingredientsSponsorApproved speciesApplication
Veteeze Injectionapproval withdrawnDiazepamRoche Vitamins, Inc.DogsNADA 140-848

Other pages with this ingredient

A report names a drug by its set of active ingredients. Each set has its own page. The list is in order of name.

Next in the A to Z list

All drugs by active ingredient. Brand names A to Z

FDA pages for this drug

The site checked these addresses on . The links open in a new tab.

Cite this page

Pet Drug Reports. Diazepam: adverse event reports that FDA received. https://petdrugreports.com/drug/diazepam/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of . Reports received through .

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Where the data come from

The counts come from the openFDA Animal and Veterinary adverse event files, export of 30 Oct 2026. The files have the reports that the FDA Center for Veterinary Medicine received through 26 Jun 2026. The files mask brand and manufacturer names. The site counts a drug by the active ingredients that each record gives, and gives no count to a brand, an application or a company. Ingredient names and the lists of approved products follow the FDA Green Book of 2 Nov 2026. The site does not use the application number that a record has.

The site does not publish report text, lot numbers or details of a reporter. FDA's record is the authority. See how the site counts reports, the data sources and the corrections page.

Questions about these reports

Which brand are these reports about?

The openFDA records give the value "MSK" for the brand name and for the manufacturer name of each drug. FDA says that MSK means "masked". So the site cannot count a report for a brand. The Green Book lists no brand name for exactly this active ingredient.

Do the reports show that the drug caused the signs?

No. FDA states this about the data.

When looking at the results, be aware that there is no certainty that the reported drug or device caused the adverse event.

The adverse event may have been related to an underlying disease, other drugs used at the same time or other non-drug related sources.

FDA Center for Veterinary Medicine. Source: Adverse Event Reports for Animal Drugs and Devices

How many reports did FDA receive in the latest 12 months?

FDA received 51 reports in the 12 months to June 2026. It received 67 reports in the 12 months before. FDA says that a report can take 3 to 6 months to reach the public data. The newest months can get more reports in a later update.

What kinds of report are in the count?

Of the 979 reports received from July 1993 to June 2026, 90.9% are about a safety issue only. 7% are about a lack of expected effectiveness, alone or with a safety issue. 2% are about a defect of the product or its package.