Pet Drug Reports

Hanovarianadverse event reports for animal drugs

Breed of horse

The FDA breed label is "Hanovarian". The count has only the reports that give this one breed.

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 August 1989 to June 2026, FDA received 175 reports that give the breed Hanovarian. That is 0.9% of the reports about horses. In the 12 months to June 2026, FDA received 9 reports for this breed.

The count has only the reports that give this one breed. Reports about crossbred animals are in the count for the species. The signs that appear in the largest number of the 175 reports are "Ineffective, gastric ulcer(s)" and "Lack of efficacy - NOS". A report is not proof that a drug caused a sign.

By number of reports in all years, this breed is number 12 of 15 breeds of horses with a page. Fewer than 20 reports gave this breed in the 12 months before June 2026, so this page gives no change. The sign "Ineffective, gastric ulcer(s)" is in 13.7% of the reports that give this breed, and in 4.4% of the reports about horses.

Search engines list a breed page with 1,500 reports or more in all years. The page also needs 30 reports or more in the 12 months to June 2026. This page is under one of these numbers. The site keeps the page and keeps it out of search engines.

Drug pages with reports for this breed

The table has every drug page with 5 or more reports that give this breed, in order of name. No count decides which drug is in the table. The table has 11 drug pages.

Drug pages with 5 or more reports that give the breed Hanovarian, in order of name
Active ingredientsReports that give this breed
Altrenogest7
Ceftiofur Crystalline Free Acid10
Detomidine Hydrochloride8
Firocoxib13
Flunixin Meglumine5
Ivermectin + Praziquantel40
Omeprazole44
Pentosan polysulfate sodium5
Pergolide mesylate10
Polysulfated Glycosaminoglycan9
Sucralfate7

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.

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.

Commonly used products may have a higher number of reported adverse events due to the higher total number of animals being given the product.

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

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 175 reports that list the sign.

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

  1. Ineffective, gastric ulcer(s)[legacy FDA term: the product did not have the expected effect (gastric ulcer(s))]13.7%24 reports
  2. Lack of efficacy - NOS[the product did not have the expected effect]9.1%16 reports
  3. Application site lesion[lesion where the product was applied]6.3%11 reports
  4. Application site swelling[swelling where the product was applied]6.3%11 reports
  5. Injection site swelling[swelling where the injection was given]6.3%11 reports
  6. Application site inflammation[inflammation where the product was applied]5.7%10 reports
  7. Buccal irritation5.7%10 reports
  8. Oral ulceration5.7%10 reports
  9. Lip oedema5.1%9 reports
  10. Gastric ulcer4.6%8 reports
  11. Partial lack of efficacy[the product worked less well than expected]4.6%8 reports
  12. Abdominal pain4%7 reports
  13. Behavioural disorder NOS[behaviour change, type not specified]4%7 reports
  14. Injection site pain[pain where the injection was given]4%7 reports
Show the next 11 signs
  1. Application site erythema[reddened skin where the product was applied]3.4%6 reports
  2. Colic3.4%6 reports
  3. Depression[dull, quiet or withdrawn]3.4%6 reports
  4. Diarrhoea[diarrhea]3.4%6 reports
  5. Anorexia[not eating]2.9%5 reports
  6. Fever2.9%5 reports
  7. Hives2.9%5 reports
  8. Hyperhidrosis2.9%5 reports
  9. Injection site hair change[hair change where the injection was given]2.9%5 reports
  10. Lameness2.9%5 reports
  11. Lethargy[unusually tired or inactive]2.9%5 reports

What the reports record

Age of the animal

  • Hanovarian reports
  • All reports about horses
  • Under 1 year1.7%3
  • 1 to 3 years4%7
  • 4 to 7 years14.9%26
  • 8 to 11 years23.4%41
  • 12 years and over45.1%79
  • Age not given10.9%19

Weight of the animal

  • Hanovarian reports
  • All reports about horses
  • Under 5 kg (11 lb)0%0
  • 5 to 9.9 kg (11 to 22 lb)0%0
  • 10 to 24.9 kg (22 to 55 lb)0%0
  • 25 to 44.9 kg (55 to 99 lb)0%0
  • 45 kg and over (99 lb and over)68.6%120
  • Weight not given31.4%55

Outcome at the time of the report

  • Recovered/Normal18.9%33
  • Recovered with Sequela[recovered, with a lasting effect]1.1%2
  • Ongoing14.3%25
  • Died1.7%3
  • Euthanized0%0
  • Outcome Unknown26.3%46

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 175 reports that give this breed.

Each share of age and weight is of the 175 reports that give this breed. The thin bar is the same share in the 18,674 reports about horses.

Reports by month and by year

Reports for each month, Jul 2021 to Jun 2026. The month is the month in which FDA received the report.

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 that give the breed Hanovarian, by the year in which FDA received them
YearReports
20264
202512
20247
20236
20224
20218
20205
20196
20185
201713
201610
20159
20144
201314
201210
20114
20109
20095
20083
20073
200616
20051
20043
20033
20011
20003
19993
19972
19931
19891

Next in the A to Z list of breeds

All reports about horses. All breeds

Cite this page

Pet Drug Reports. Hanovarian: adverse event reports for animal drugs. https://petdrugreports.com/breed/horse/hanovarian/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of . Reports received through .

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 puts the FDA breed label in the usual order of the words.

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

What ages are the animals in the reports?

The figures are shares of the 175 reports about this breed received from August 1989 to June 2026. 45.1% give an age of 12 years and over. 23.4% give an age of 8 to 11 years. 10.9% give no age.

How does the count of the latest 12 months compare with the 12 months before?

FDA received 9 reports in the 12 months to June 2026. It received 9 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.

Why are crossbred animals not in the count?

The site counts a report for a breed only when the report gives one breed. A report for a crossbred animal can give more than one breed, and a count for each breed would count the report more than once. The reports about crossbred animals are in the count for horses.

Do the reports show that this breed reacts more to a drug?

No. The reports do not give the number of animals of the breed. FDA states 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.

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