Pet Drug Reports

October 2023: 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 6,154 adverse event reports for animal drugs in October 2023. It received 5,014 reports in October 2022. The average of the 12 months before October 2023 is 5,196 reports for each month.

Of the 6,154 reports, 69.2% are about dogs, 18.4% are about cats and 1.5% 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, Apr 2022 to Apr 2024. The column with the outline is October 2023.

Reports by species

  • Dog69.2%4,260
  • Cat18.4%1,130
  • Horse1.5%92
  • Other species, or species not given10.9%672

Drug pages with reports received in October 2023

The table has every drug page with 10 or more reports that FDA received in October 2023, in order of name. No count decides which drug is in the table. The table has 103 drug pages.

Show the 103 drug pages
Drug pages with 10 or more reports received in October 2023, in order of name
Active ingredientsReports received in October 2023
(S) - methoprene30
Acepromazine Maleate18
Afoxolaner411
Afoxolaner + Moxidectin + Pyrantel Pamoate75
Amoxicillin + Clavulanate Potassium12
Amoxicillin Trihydrate + Clavulanate Potassium25
Atipamezole Hydrochloride19
Bedinvetmab167
Betamethasone Acetate + Florfenicol + Terbinafine11
Bexagliflozin135
Buprenorphine109
Butorphanol Tartrate74
Capromorelin34
Carprofen102
Cefovecin sodium73
Cefpodoxime proxetil16
Ceftiofur Crystalline Free Acid12
Cephalexin11
Clotrimazole + Gentamicin10
Cyclosporine50
Deracoxib14
Dexamethasone14
Dexmedetomidine36
Dexmedetomidine hydrochloride24
Diphenhydramine29
Doramectin11
Doxycycline34
Emodepside + Praziquantel27
Enrofloxacin29
Eprinomectin + Esafoxolaner + Praziquantel123
Estriol10
Famotidine15
Febantel + Praziquantel + Pyrantel Pamoate44
Fenbendazole11
Firocoxib13
Florfenicol + Mometasone furoate + Terbinafine85
Fluoxetine hydrochloride17
Fluralaner592
Fluralaner + Moxidectin59
Frunevetmab237
Furosemide11
Gabapentin112
Gentamicin Sulfate + Hydrocortisone aceponate + Miconazole Nitrate11
Grapiprant46
Hydromorphone11
Imidacloprid104
Imidacloprid + Moxidectin46
Insulin66
Isoflurane43
Ivermectin37
Ivermectin + Pyrantel Pamoate609
Ketamine Hydrochloride36
Ketoconazole11
Levothyroxine sodium18
Lotilaner147
Lufenuron + Milbemycin Oxime44
Lufenuron + Milbemycin Oxime + Praziquantel60
Maropitant135
Medetomidine hydrochloride + Vatinoxan hydrochloride19
Melarsomine Dihydrochloride72
Meloxicam32
Methimazole16
Methylprednisolone Acetate16
Metronidazole33
Midazolam18
Milbemycin Oxime33
Milbemycin Oxime + Praziquantel265
Milbemycin Oxime + Spinosad82
Mirtazapine18
Molidustat19
Monensin18
Moxidectin359
Moxidectin + Pyrantel Pamoate + Sarolaner22
Nitenpyram159
Oclacitinib167
Omeprazole28
Pergolide mesylate11
Pimobendan81
Polysulfated Glycosaminoglycan32
Praziquantel36
Praziquantel + Pyrantel Pamoate24
Prednisolone37
Prednisone71
Propofol35
Pyrantel Pamoate24
Pyrantel Pamoate + Sarolaner907
Rabacfosadine10
Robenacoxib36
Sarolaner98
Sarolaner + Selamectin109
Selamectin95
Sodium Chloride43
Spinosad10
Sucralfate18
Tigilanol tiglate48
Tramadol11
Trazodone14
Trilostane70
Tulathromycin26
Ursodiol10
Velagliflozin25
Xylazine12
Xylazine Hydrochloride17

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 6,154 reports of the month.

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

  1. Vomiting13.1%807 reports
  2. Lack of efficacy (endoparasite) - heartworm[the product did not have the expected effect: heartworm]8.8%541 reports
  3. Lack of efficacy (ectoparasite) - flea[the product did not have the expected effect: fleas]8.3%512 reports
  4. Lethargy[unusually tired or inactive]8.1%498 reports
  5. Lack of efficacy (endoparasite) - hookworm[the product did not have the expected effect: hookworms]6.3%385 reports
  6. Diarrhoea[diarrhea]5.9%361 reports
  7. Lack of efficacy - NOS[the product did not have the expected effect]5.1%312 reports
  8. Lack of efficacy (bacteria) - Borrelia[the product did not have the expected effect: Borrelia (Lyme disease bacteria)]3.6%221 reports
  9. Seizure NOS[seizure, type not specified]3.4%208 reports
  10. Not eating3.4%207 reports
  11. Lack of efficacy (endoparasite) - roundworm NOS[the product did not have the expected effect: roundworms]3.3%203 reports
  12. Death3.2%200 reports
  13. Lack of efficacy (endoparasite) - tapeworm[the product did not have the expected effect: tapeworms]2.6%157 reports
  14. Behavioural disorder NOS[behaviour change, type not specified]2.3%142 reports
Show the next 1 signs
  1. Lack of efficacy (ectoparasite) - tick NOS[the product did not have the expected effect: ticks]2.3%139 reports

Ingredients, all combinations

The list has every active ingredient with 10 or more reports received in October 2023, in order of name. It has 101 ingredients.

Show the 101 ingredients

The same month in other years

Cite this page

Pet Drug Reports. October 2023: adverse event reports for animal drugs. https://petdrugreports.com/month/2023-10/ 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 October 2023 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 807 reports of the 6,154 reports of October 2023 (13.1%).