Reaction profile

The FDA adverse-event record for crystalluria

727 FDA adverse-event reports reference crystalluria (VeDDRA 2028). See the species, breeds, and drugs most associated with it below.

727
reports citing this reaction
10.6%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
727
Total Reports
77
Deaths
10.6%
Death Rate

Species Most Affected

Dog 609
Cat 115
Horse 3

Breeds Most Affected

Retriever - Labrador 83
Domestic Shorthair 75
Crossbred Canine/dog 40
Retriever - Golden 27
Shih Tzu 26
Boxer (German Boxer) 21
Terrier - Yorkshire 19
Chihuahua 19
Collie - Border 15
Shepherd Dog - German 14

Associated Drugs

Milbemycin Oxime + Spinosad 98
Carprofen 81
Trilostane 51
Oclacitinib Maleate 49
Afoxolaner 43
Bedinvetmab 43
Fluralaner Chew Tablets 38
Spinosad 30
Maropitant Citrate 29
Cyclosporine 25
Gabapentin 24
Deracoxib 22
Pyrantel Pamoate;Sarolaner 21
Cephalexin 19
Ivermectin + Pyrantel As Pamoate Salt 18
Meloxicam 17
Cefovecin 17
Prednisone 17
Cefovecin Sodium 16
Enrofloxacin 15

Crystalluria Reaction Insights

727 reports name Crystalluria; 77 recorded a death outcome (10.6% of reported events, not a population-level mortality rate). VeDDRA code: 2028.

By species: Dog (609 reports), Cat (115 reports), Horse (3 reports). By breed: Retriever - Labrador (83), Domestic Shorthair (75), Crossbred Canine/dog (40).

Most co-reported drugs: Milbemycin Oxime + Spinosad (98 reports), Carprofen (81 reports), Trilostane (51 reports), Oclacitinib Maleate (49 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.