Reaction profile

The FDA adverse-event record for injection site hair loss

293 FDA adverse-event reports reference injection site hair loss (VeDDRA 74). See the species, breeds, and drugs most associated with it below.

293
reports citing this reaction
1.0%
death-coded share
Dog
most-affected species
Carprofen
most-associated drug
Verify with FDA CVM →
293
Total Reports
3
Deaths
1.0%
Death Rate

Species Most Affected

Dog 150
Cat 92
Horse 34
Cattle 12
Goat 4
White tailed deer 1

Breeds Most Affected

Domestic Shorthair 62
Retriever - Labrador 19
Quarter Horse 13
Chihuahua 10
Terrier - Yorkshire 10
Terrier - Bull - American Pit 9
Crossbred Canine/dog 8
Thoroughbred 7
Cat (other) 7
Dog (unknown) 7

Associated Drugs

Carprofen 35
Frunevetmab 32
Cefovecin 30
Meloxicam 20
Polysulfated Glycosaminoglycan 19
Bedinvetmab 19
Rabies Vaccine, Killed Virus 18
Ceftiofur Crystalline Free Acid 16
Gabapentin 15
Moxidectin 14
Maropitant Citrate 12
Enrofloxacin 11
Robenacoxib 11
Prednisone 11
Tulathromycin 10
Milbemycin Oxime + Praziquantel 10
Melarsomine Dihydrochloride 9
Bordetella Bronchiseptica Vaccine, Avirulent Live Culture 9
Diphenhydramine 8
Praziquantel 7

Injection site hair loss Reaction Insights

293 reports name Injection site hair loss; 3 recorded a death outcome (1.0% of reported events, not a population-level mortality rate). VeDDRA code: 74.

By species: Dog (150 reports), Cat (92 reports), Horse (34 reports). By breed: Domestic Shorthair (62), Retriever - Labrador (19), Quarter Horse (13).

Most co-reported drugs: Carprofen (35 reports), Frunevetmab (32 reports), Cefovecin (30 reports), Meloxicam (20 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.