Pet Drug Reports

April 2019: adverse event reports that FDA received

Month in which FDA received the reports

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 .

FDA received 6,954 adverse event reports for animal drugs in April 2019. It received 6,033 reports in April 2018. The average of the 12 months before April 2019 is 5,984 reports for each month.

Of the 6,954 reports, 73.3% are about dogs, 9.7% are about cats and 0.7% are about horses. The other reports are about other species, or give no species. A report is not proof that a drug caused a sign.

Search engines do not list month pages. The site keeps the page, and the list of months links it.

The months before and after

Reports for each month, Oct 2017 to Oct 2019. The column with the outline is April 2019.

Reports by species

  • Dog73.3%5,096
  • Cat9.7%678
  • Horse0.7%50
  • Other species, or species not given16.2%1,130

Drug pages with reports received in April 2019

The table has every drug page with 10 or more reports that FDA received in April 2019, in order of name. No count decides which drug is in the table. The table has 81 drug pages.

Show the 81 drug pages
Drug pages with 10 or more reports received in April 2019, in order of name
Active ingredientsReports received in April 2019
(S) - methoprene21
Acepromazine Maleate11
Afoxolaner552
Amoxicillin Trihydrate + Clavulanate Potassium125
Atipamezole Hydrochloride12
Buprenorphine25
Butorphanol Tartrate43
Capromorelin23
Carprofen86
Cefovecin sodium64
Ceftiofur Crystalline Free Acid13
Cyclosporine57
Deracoxib24
Desoxycorticosterone Pivalate14
Dexamethasone24
Dexamethasone + Neomycin Sulfate + Thiabendazole14
Dexmedetomidine26
Dexmedetomidine hydrochloride20
Diphenhydramine24
Doramectin10
Doxycycline31
Emodepside + Praziquantel37
Enrofloxacin21
Eprinomectin20
Eprinomectin + Praziquantel19
Estriol15
Febantel + Praziquantel + Pyrantel Pamoate50
Firocoxib11
Florfenicol + Mometasone furoate + Terbinafine42
Florfenicol + Terbinafine25
Fluralaner1,075
Gabapentin27
Grapiprant100
Imidacloprid35
Imidacloprid + Moxidectin140
Insulin93
Isoflurane23
Ivermectin91
Ivermectin + Praziquantel + Pyrantel Pamoate34
Ivermectin + Pyrantel Pamoate1,125
Ketamine Hydrochloride17
Ketoconazole14
Levothyroxine sodium12
Lotilaner127
Lufenuron + Milbemycin Oxime151
Lufenuron + Milbemycin Oxime + Praziquantel112
Maropitant68
Melarsomine Dihydrochloride101
Meloxicam59
Methylprednisolone Acetate12
Metronidazole15
Midazolam23
Milbemycin Oxime64
Milbemycin Oxime + Praziquantel441
Milbemycin Oxime + Spinosad612
Mirtazapine20
Monensin17
Moxidectin377
Nitenpyram83
Oclacitinib158
Omeprazole13
Pergolide mesylate12
Phenobarbital13
Pimobendan35
Polysulfated Glycosaminoglycan32
Praziquantel20
Praziquantel + Pyrantel Pamoate22
Prednisolone14
Prednisone42
Propofol27
Pyrantel Pamoate14
Robenacoxib16
Sarolaner360
Sarolaner + Selamectin87
Selamectin146
Sodium Chloride33
Spinosad110
Tildipirosin10
Tramadol15
Trilostane83
Tulathromycin13

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 of the month 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 6,954 reports of the month.

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

  1. Vomiting19.3%1,341 reports
  2. Lethargy[unusually tired or inactive]8.3%578 reports
  3. Lack of efficacy (endoparasite) - heartworm[the product did not have the expected effect: heartworm]7.9%547 reports
  4. Ineffective, hooks[legacy FDA term: the product did not have the expected effect (hooks)]6.9%481 reports
  5. Diarrhoea[diarrhea]5.8%402 reports
  6. Seizure NOS[seizure, type not specified]4.1%284 reports
  7. Product problem[a product quality report, not a sign in an animal]3.2%223 reports
  8. Unpalatable[legacy FDA term: the animal would not take it]3.1%217 reports
  9. Lack of efficacy (ectoparasite) - flea[the product did not have the expected effect: fleas]2.8%196 reports
  10. Death2.3%160 reports
  11. Product Defect, General[a product quality report, not a sign in an animal]2.3%158 reports
  12. Anorexia[not eating]2.2%155 reports
  13. Lack of efficacy (tick)[the product did not have the expected effect: ticks]2.2%155 reports
  14. Emesis (multiple)[vomiting more than once]2.2%154 reports
Show the next 1 signs
  1. Lack of efficacy - NOS[the product did not have the expected effect]2.2%152 reports

Ingredients, all combinations

The list has every active ingredient with 10 or more reports received in April 2019, in order of name. It has 75 ingredients.

Show the 75 ingredients

The same month in other years

Cite this page

Pet Drug Reports. April 2019: adverse event reports for animal drugs. https://petdrugreports.com/month/2019-04/ 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 month is the month in which FDA received the report, not the month of the event.

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 this month

Can the count for April 2019 change?

Yes. 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.

Does the month show when the event occurred?

No. The month is the month in which FDA received the report. The event can be from an earlier month.

Which sign is in the largest number of the reports of the month?

"Vomiting" is in 1,341 reports of the 6,954 reports of April 2019 (19.3%).