April 2017: 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 6,712 adverse event reports for animal drugs in April 2017. It received 6,600 reports in April 2016. The average of the 12 months before April 2017 is 6,206 reports for each month.

Of the 6,712 reports, 78.1% are about dogs, 8% 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 2015 to Oct 2017. The column with the outline is April 2017.

Reports by species

Dog78.1%5,242
Cat8%540
Horse0.7%48
Other species, or species not given13.1%882

Drug pages with reports received in April 2017

The table has every drug page with 10 or more reports that FDA received in April 2017, in order of name. No count decides which drug is in the table. The table has 70 drug pages.

Show the 70 drug pages

Drug pages with 10 or more reports received in April 2017, in order of name
Active ingredients	Reports received in April 2017
(S) - methoprene	35
Afoxolaner	752
Amoxicillin + Clavulanate Potassium	18
Buprenorphine	16
Butorphanol Tartrate	21
Carprofen	114
Cefovecin sodium	56
Cefpodoxime proxetil	19
Ceftiofur Crystalline Free Acid	12
Cephalexin	25
Cyclosporine	57
Deracoxib	36
Dexamethasone	11
Dexmedetomidine hydrochloride	32
Diphenhydramine	21
Doramectin	15
Doxycycline	16
Emodepside + Praziquantel	36
Enalapril Maleate	10
Enrofloxacin	26
Estriol	17
Famotidine	17
Febantel + Praziquantel + Pyrantel Pamoate	30
Firocoxib	34
Florfenicol + Mometasone furoate + Terbinafine	31
Florfenicol + Terbinafine	30
Fluralaner	945
Furosemide	16
Gabapentin	29
Grapiprant	129
Hydromorphone	10
Imidacloprid	40
Imidacloprid + Moxidectin	147
Insulin	62
Isoflurane	13
Ivermectin	78
Ivermectin + Pyrantel Pamoate	1,007
Ketamine Hydrochloride	21
Ketoconazole	10
Levothyroxine sodium	21
Lufenuron + Milbemycin Oxime	200
Lufenuron + Praziquantel	96
Maropitant	68
Melarsomine Dihydrochloride	104
Meloxicam	40
Methylprednisolone Acetate	11
Metronidazole	19
Milbemycin Oxime	80
Milbemycin Oxime + Praziquantel	228
Milbemycin Oxime + Spinosad	906
Moxidectin	181
Nitenpyram	123
Oclacitinib	338
Orbifloxacin	15
Pimobendan	31
Polysulfated Glycosaminoglycan	62
Pradofloxacin	12
Praziquantel	15
Praziquantel + Pyrantel Pamoate	27
Prednisolone	20
Prednisolone + Trimeprazine Tartrate	10
Prednisone	33
Pyrantel Pamoate	18
Rabacfosadine	25
Robenacoxib	28
Sarolaner	172
Selamectin	195
Spinosad	268
Tramadol	41
Trilostane	66

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 6,712 reports of the month.

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

Vomiting22.9%1,539 reports
Lethargy[unusually tired or inactive]10%668 reports
Diarrhoea[diarrhea]7.3%491 reports
Ineffective, heartworm larvae[legacy FDA term: the product did not have the expected effect (heartworm larvae)]6.4%431 reports
Digestive tract disorder NOS[digestive problem, type not specified]5.3%358 reports
Lack of efficacy (endoparasite) - hookworm[the product did not have the expected effect: hookworms]5.3%353 reports
Lack of efficacy (ectoparasite) - flea[the product did not have the expected effect: fleas]3.8%256 reports
Unpalatable[legacy FDA term: the animal would not take it]3.3%223 reports
Lack of efficacy (tick)[the product did not have the expected effect: ticks]3.1%211 reports
Seizure NOS[seizure, type not specified]2.9%192 reports
Anorexia[not eating]2.8%186 reports
Ineffective, ascarids NOS[legacy FDA term: the product did not have the expected effect (ascarids nos)]2.6%173 reports
Pruritus[itching]2.5%171 reports
Product problem[a product quality report, not a sign in an animal]2.3%154 reports

Show the next 1 signs

Emesis (multiple)[vomiting more than once]2.2%151 reports

Ingredients, all combinations

The list has every active ingredient with 10 or more reports received in April 2017, in order of name. It has 69 ingredients.

Show the 69 ingredients

The same month in other years

Cite this page

Pet Drug Reports. April 2017: adverse event reports for animal drugs. https://petdrugreports.com/month/2017-04/ 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 2017 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 1,539 reports of the 6,712 reports of April 2017 (22.9%).