Reaction profile

The FDA adverse-event record for painful defecation

101 FDA adverse-event reports reference painful defecation (VeDDRA 1983). See the species, breeds, and drugs most associated with it below.

101
reports citing this reaction
18.8%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
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101
Total Reports
19
Deaths
18.8%
Death Rate

Species Most Affected

Dog 84
Cat 13
Cattle 2
Horse 1
Ferret 1

Breeds Most Affected

Crossbred Canine/dog 7
Domestic Shorthair 6
Retriever - Golden 6
Shih Tzu 5
Chihuahua 5
Domestic Mediumhair 4
Terrier - Boston 4
Shepherd Dog - German 4
Terrier (unspecified) 4
Dog (unknown) 3

Associated Drugs

Milbemycin Oxime + Spinosad 13
Spinosad 7
Cyclosporine A 7
Imidacloprid + Moxidectin 6
Carprofen 6
Grapiprant 6
Cyclosporine 5
Tramadol 5
Polysulfated Glycosaminoglycan 5
Prednisone 4
Enrofloxacin 4
Fluralaner Chew Tablets 4
Dexmedetomidine Hydrochloride 3
Maropitant Citrate 3
Famotidine 3
Cefovecin 3
Ivermectin + Pyrantel As Pamoate Salt 3
Lufenuron + Milbemycin Oxime 3
Milbemycin Oxime + Praziquantel 3
Fluralaner 13.64% 12-Week Chew 3

Painful defecation Reaction Insights

101 reports name Painful defecation; 19 recorded a death outcome (18.8% of reported events, not a population-level mortality rate). VeDDRA code: 1983.

By species: Dog (84 reports), Cat (13 reports), Cattle (2 reports). By breed: Crossbred Canine/dog (7), Domestic Shorthair (6), Retriever - Golden (6).

Most co-reported drugs: Milbemycin Oxime + Spinosad (13 reports), Spinosad (7 reports), Cyclosporine A (7 reports), Imidacloprid + Moxidectin (6 reports).

Read these counts as reporting volume, not risk: per our methodology, co-reporting reflects temporal association captured in voluntary submissions, not proof that a drug caused this reaction. A widely-prescribed drug will rack up more raw co-reports at an identical true rate than a rarely-used one, so compare within similar-exposure products.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.