February 2024: 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 2 Oct 2026. The data have the reports that FDA received through 26 Jun 2026.

FDA received 6,098 adverse event reports for animal drugs in February 2024. It received 4,413 reports in February 2023. The average of the 12 months before February 2024 is 5,528 reports for each month.

Of the 6,098 reports, 69.9% are about dogs, 18% are about cats and 1.3% 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, Aug 2022 to Aug 2024. The column with the outline is February 2024.

Reports by species

Dog69.9%4,265
Cat18%1,100
Horse1.3%82
Other species, or species not given10.7%651

Drug pages with reports received in February 2024

The table has every drug page with 10 or more reports that FDA received in February 2024, 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 February 2024, in order of name
Active ingredients	Reports received in February 2024
Acepromazine Maleate	13
Afoxolaner	276
Afoxolaner + Moxidectin + Pyrantel Pamoate	163
Amantadine	12
Amlodipine	12
Amoxicillin	11
Amoxicillin + Clavulanate Potassium	14
Amoxicillin Trihydrate + Clavulanate Potassium	22
Atipamezole Hydrochloride	33
Bedinvetmab	955
Betamethasone Acetate + Florfenicol + Terbinafine	14
Bexagliflozin	137
Buprenorphine	135
Butorphanol Tartrate	66
Capromorelin	25
Carprofen	189
Cefovecin sodium	68
Cefpodoxime proxetil	29
Ceftiofur Crystalline Free Acid	14
Cephalexin	10
Clotrimazole + Gentamicin	10
Cyclosporine	56
Detomidine Hydrochloride	11
Dexamethasone	17
Dexmedetomidine	30
Dexmedetomidine hydrochloride	40
Diphenhydramine	20
Doramectin	10
Doxycycline	30
Emodepside + Praziquantel	20
Enalapril Maleate	13
Enrofloxacin	36
Eprinomectin	10
Eprinomectin + Esafoxolaner + Praziquantel	77
Famotidine	14
Febantel + Praziquantel + Pyrantel Pamoate	28
Fenbendazole	19
Firocoxib	12
Florfenicol + Mometasone furoate + Terbinafine	62
Fluoxetine hydrochloride	30
Fluralaner	376
Fluralaner + Moxidectin	42
Frunevetmab	224
Furosemide	12
Gabapentin	244
Grapiprant	77
Hydromorphone	12
Imidacloprid	46
Imidacloprid + Moxidectin	48
Insulin	93
Isoflurane	51
Ivermectin	40
Ivermectin + Pyrantel Pamoate	464
Ketamine Hydrochloride	30
Ketoconazole	13
Levothyroxine sodium	23
Lotilaner	90
Lufenuron + Milbemycin Oxime	51
Lufenuron + Milbemycin Oxime + Praziquantel	57
Maropitant	100
Medetomidine hydrochloride + Vatinoxan hydrochloride	19
Melarsomine Dihydrochloride	64
Meloxicam	44
Methimazole	14
Methylprednisolone Acetate	14
Metronidazole	29
Midazolam	15
Milbemycin Oxime	27
Milbemycin Oxime + Praziquantel	220
Milbemycin Oxime + Spinosad	105
Mirtazapine	32
Molidustat	18
Monensin	11
Moxidectin	348
Moxidectin + Pyrantel Pamoate + Sarolaner	13
Nitenpyram	68
Oclacitinib	190
Omeprazole	41
Pergolide mesylate	14
Phenylpropanolamine hydrochloride	12
Pimobendan	43
Polysulfated Glycosaminoglycan	32
Praziquantel	32
Praziquantel + Pyrantel Pamoate	27
Prednisolone	35
Prednisone	69
Propofol	56
Pyrantel Pamoate	14
Pyrantel Pamoate + Sarolaner	765
Robenacoxib	48
Sarolaner	65
Sarolaner + Selamectin	102
Selamectin	38
Sodium Chloride	65
Sucralfate	11
Telmisartan	11
Tigilanol tiglate	42
Tramadol	25
Trazodone	18
Trilostane	58
Tulathromycin	15
Ursodiol	14
Velagliflozin	136

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 6,098 reports of the month.

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

Vomiting10.8%661 reports
Lack of efficacy (endoparasite) - heartworm[the product did not have the expected effect: heartworm]8.1%493 reports
Lethargy[unusually tired or inactive]8%490 reports
Diarrhoea[diarrhea]6.7%408 reports
Lack of efficacy - NOS[the product did not have the expected effect]6.1%369 reports
Lack of efficacy (endoparasite) - roundworm NOS[the product did not have the expected effect: roundworms]4%246 reports
Lack of efficacy (ectoparasite) - flea[the product did not have the expected effect: fleas]3.9%240 reports
Death3.6%221 reports
Death by euthanasia[the animal was euthanized]3.6%221 reports
Seizure NOS[seizure, type not specified]3.6%221 reports
Lack of efficacy (endoparasite) - hookworm[the product did not have the expected effect: hookworms]3.5%215 reports
Lack of efficacy (bacteria) - Borrelia[the product did not have the expected effect: Borrelia (Lyme disease bacteria)]3.3%199 reports
Not eating3.2%194 reports
Emesis (multiple)[vomiting more than once]3%181 reports

Show the next 1 signs

Ataxia[unsteady, uncoordinated movement]2.8%168 reports

Ingredients, all combinations

The list has every active ingredient with 10 or more reports received in February 2024, in order of name. It has 101 ingredients.

Show the 101 ingredients

The same month in other years

Cite this page

Pet Drug Reports. February 2024: adverse event reports for animal drugs. https://petdrugreports.com/month/2024-02/ Source: FDA Center for Veterinary Medicine, openFDA Animal and Veterinary adverse event reports, export of 30 Oct 2026. Reports received through 26 Jun 2026.

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 February 2024 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 661 reports of the 6,098 reports of February 2024 (10.8%).