May 2012: 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 6,702 adverse event reports for animal drugs in May 2012. It received 4,738 reports in May 2011. The average of the 12 months before May 2012 is 4,569 reports for each month.

Of the 6,702 reports, 77.9% are about dogs, 6.9% are about cats and 0.6% 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, Nov 2010 to Nov 2012. The column with the outline is May 2012.

Reports by species

Dog77.9%5,224
Cat6.9%464
Horse0.6%39
Other species, or species not given14.5%975

Drug pages with reports received in May 2012

The table has every drug page with 10 or more reports that FDA received in May 2012, in order of name. No count decides which drug is in the table. The table has 66 drug pages.

Show the 66 drug pages

Drug pages with 10 or more reports received in May 2012, in order of name
Active ingredients	Reports received in May 2012
(S) - methoprene	49
Amitraz + (S) - methoprene	43
Amoxicillin	14
Amoxicillin Trihydrate + Clavulanate Potassium	44
Buprenorphine	10
Butorphanol Tartrate	22
Carprofen	156
Cefovecin sodium	56
Cefpodoxime proxetil	16
Cephalexin	29
Clomipramine Hydrochloride	24
Clotrimazole + Gentamicin Sulfate + Mometasone Furoate Monohydrate	17
Cyclosporine	183
Deracoxib	27
Desoxycorticosterone Pivalate	13
Dexamethasone	18
Dexmedetomidine hydrochloride	27
Diphenhydramine	37
Doramectin	35
Emodepside + Praziquantel	44
Enrofloxacin	38
Famotidine	23
Febantel + Praziquantel + Pyrantel Pamoate	18
Fenbendazole	28
Firocoxib	61
Fluoxetine hydrochloride	14
Furosemide	14
Hydroxyzine	14
Imidacloprid	15
Imidacloprid + Moxidectin	169
Insulin	39
Isoflurane	22
Ivermectin	184
Ivermectin + Praziquantel	13
Ivermectin + Praziquantel + Pyrantel Pamoate	107
Ivermectin + Pyrantel Pamoate	795
Ketoconazole	15
Levothyroxine sodium	36
Lufenuron	10
Lufenuron + Milbemycin Oxime	114
Maropitant	45
Melarsomine Dihydrochloride	130
Meloxicam	192
Methylprednisolone Acetate	12
Metronidazole	13
Milbemycin Oxime	282
Milbemycin Oxime + Spinosad	2,375
Monensin	18
Moxidectin	115
Nitenpyram	43
Phenobarbital	19
Pimobendan	27
Polysulfated Glycosaminoglycan	14
Praziquantel + Pyrantel Pamoate	28
Prednisolone + Trimeprazine Tartrate	27
Prednisone	49
Progesterone	12
Propofol	16
Pyrantel Pamoate	20
Robenacoxib	25
Selamectin	279
Spinosad	999
Tilmicosin Phosphate	11
Tramadol	21
Triamcinolone Acetonide	16
Trilostane	49

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 6,702 reports of the month.

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

Emesis[vomiting]22%1,475 reports
Vomiting16.1%1,076 reports
Lethargy[unusually tired or inactive]11.8%790 reports
Lack of efficacy (ectoparasite) - flea[the product did not have the expected effect: fleas]6.3%420 reports
Diarrhoea[diarrhea]6.1%409 reports
Ineffective, heartworm larvae[legacy FDA term: the product did not have the expected effect (heartworm larvae)]5.6%375 reports
Lack of efficacy - NOS[the product did not have the expected effect]4.7%316 reports
Anorexia[not eating]4.3%285 reports
Lack of efficacy (endoparasite) - hookworm[the product did not have the expected effect: hookworms]4%268 reports
Unpalatable[legacy FDA term: the animal would not take it]3.4%230 reports
Digestive tract disorder NOS[digestive problem, type not specified]3.1%206 reports
Behavioural disorder NOS[behaviour change, type not specified]2.6%176 reports
Depression[dull, quiet or withdrawn]2.6%176 reports
Ineffective, ascarids NOS[legacy FDA term: the product did not have the expected effect (ascarids nos)]2.4%162 reports

Show the next 1 signs

Other abnormal test result NOS[abnormal laboratory result, type not specified]2.4%160 reports

Ingredients, all combinations

The list has every active ingredient with 10 or more reports received in May 2012, in order of name. It has 68 ingredients.

Show the 68 ingredients

The same month in other years

Cite this page

Pet Drug Reports. May 2012: adverse event reports for animal drugs. https://petdrugreports.com/month/2012-05/ 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 May 2012 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?: "Emesis" is in 1,475 reports of the 6,702 reports of May 2012 (22%).