April 2014: 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 5,903 adverse event reports for animal drugs in April 2014. It received 6,147 reports in April 2013. The average of the 12 months before April 2014 is 5,693 reports for each month.

Of the 5,903 reports, 76.4% are about dogs, 8.3% are about cats and 1% 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 2012 to Oct 2014. The column with the outline is April 2014.

Reports by species

Dog76.4%4,512
Cat8.3%488
Horse1%59
Other species, or species not given14.3%844

Drug pages with reports received in April 2014

The table has every drug page with 10 or more reports that FDA received in April 2014, in order of name. No count decides which drug is in the table. The table has 72 drug pages.

Show the 72 drug pages

Drug pages with 10 or more reports received in April 2014, in order of name
Active ingredients	Reports received in April 2014
(S) - methoprene	42
Acepromazine Maleate	13
Afoxolaner	212
Amoxicillin	10
Amoxicillin + Clavulanate Potassium	27
Atipamezole Hydrochloride	14
Buprenorphine	12
Butorphanol Tartrate	23
Carprofen	156
Cefovecin sodium	58
Cefpodoxime proxetil	30
Ceftiofur Crystalline Free Acid	17
Cephalexin	17
Clotrimazole + Gentamicin Sulfate + Mometasone Furoate Monohydrate	14
Cyclosporine	112
Deracoxib	32
Desoxycorticosterone Pivalate	12
Dexamethasone	14
Dexmedetomidine hydrochloride	25
Diphenhydramine	31
Emodepside + Praziquantel	31
Enalapril Maleate	10
Enrofloxacin	49
Eprinomectin	24
Estriol	11
Febantel + Praziquantel + Pyrantel Pamoate	15
Fenbendazole	22
Fentanyl	13
Firocoxib	39
Furosemide	12
Gentamicin Sulfate + Hydrocortisone aceponate + Miconazole Nitrate	20
Hydroxyzine	13
Imidacloprid	37
Imidacloprid + Moxidectin	125
Insulin	95
Isoflurane	20
Ivermectin	90
Ivermectin + Praziquantel	10
Ivermectin + Praziquantel + Pyrantel Pamoate	148
Ivermectin + Pyrantel Pamoate	796
Ketamine Hydrochloride	28
Ketoconazole	17
Levothyroxine sodium	23
Lufenuron + Milbemycin Oxime	211
Lufenuron + Praziquantel	41
Maropitant	56
Melarsomine Dihydrochloride	75
Meloxicam	50
Metronidazole	11
Milbemycin Oxime	16
Milbemycin Oxime + Spinosad	1,904
Monensin	24
Moxidectin	184
Nitenpyram	56
Oclacitinib	185
Omeprazole	12
Orbifloxacin	10
Orbifloxacin + Posaconazole	11
Pergolide mesylate	12
Pimobendan	19
Polysulfated Glycosaminoglycan	34
Pradofloxacin	11
Praziquantel + Pyrantel Pamoate	26
Prednisolone + Trimeprazine Tartrate	23
Prednisone	31
Pyrantel Pamoate	26
Robenacoxib	14
Selamectin	239
Spinosad	542
Tramadol	38
Trilostane	66
Tulathromycin	11

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 5,903 reports of the month.

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

Emesis[vomiting]21.6%1,277 reports
Lack of efficacy - NOS[the product did not have the expected effect]17.3%1,020 reports
Lethargy[unusually tired or inactive]12.1%713 reports
Vomiting10.5%618 reports
Ineffective, heartworm larvae[legacy FDA term: the product did not have the expected effect (heartworm larvae)]6.9%408 reports
Uncoded sign[a sign with no matching dictionary term]5.8%344 reports
Diarrhoea[diarrhea]5.5%324 reports
Digestive tract disorder NOS[digestive problem, type not specified]5.2%306 reports
Lack of efficacy (endoparasite) - hookworm[the product did not have the expected effect: hookworms]5.1%299 reports
Unpalatable[legacy FDA term: the animal would not take it]4.5%268 reports
Anorexia[not eating]4.2%247 reports
Lack of efficacy (ectoparasite) - flea[the product did not have the expected effect: fleas]3.6%212 reports
Cardiac disorder NOS[heart problem, type not specified]3.5%209 reports
Ineffective, ascarids NOS[legacy FDA term: the product did not have the expected effect (ascarids nos)]3.3%192 reports

Show the next 1 signs

Other abnormal test result NOS[abnormal laboratory result, type not specified]2.9%173 reports

Ingredients, all combinations

The list has every active ingredient with 10 or more reports received in April 2014, in order of name. It has 74 ingredients.

Show the 74 ingredients

The same month in other years

Cite this page

Pet Drug Reports. April 2014: adverse event reports for animal drugs. https://petdrugreports.com/month/2014-04/ 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 April 2014 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 1,277 reports of the 5,903 reports of April 2014 (21.6%).