Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your cat.
2,946
Total Reports
244
Deaths Reported
830.0%
Death Rate
7.4 yr
Avg Age at Report
Average weight at time of report: 4.7 kg (10.4 lbs)
Top Reported Reactions
Vomiting 427
Lethargy (see also Central nervous system depression in 'Neurological') 322
Lack of efficacy (ectoparasite) - flea 231
Emesis 226
Anorexia 203
Behavioural disorder NOS 185
Weight loss 165
Application site hair loss 157
Lack of efficacy - NOS 153
Application site alopecia 150
Ataxia 142
Diarrhoea 133
Not eating 128
Hypersalivation 121
Death 117
Most Referenced Drugs
Spinosad 429
Selamectin 371
Fluralaner Spot-On Solution 203
Frunevetmab 191
Cefovecin 188
Imidacloprid + Moxidectin 163
Nitenpyram 163
Buprenorphine 157
Selamectin;Sarolaner 143
Maropitant Citrate 115
Emodepside + Praziquantel 92
Robenacoxib 80
Mirtazapine 68
Velagliflozin Proline Monohydrate 65
Bexagliflozin 60
Outcome Breakdown
Recovered/Normal
843 (30.1%)
Ongoing
842 (30.1%)
Outcome Unknown
839 (30.0%)
Died
140 (5.0%)
Euthanized
104 (3.7%)
Recovered with Sequela
32 (1.1%)
Gender Distribution
Male 1,577 (53.5%)
Female 1,322 (44.9%)
Unknown 29 (1.0%)
Mixed 18 (0.6%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 90 | |
| 2011 | 82 | |
| 2012 | 183 | |
| 2013 | 225 | |
| 2014 | 207 | |
| 2015 | 202 | |
| 2016 | 176 | |
| 2017 | 211 | |
| 2018 | 184 | |
| 2019 | 180 | |
| 2020 | 173 | |
| 2021 | 149 | |
| 2022 | 166 | |
| 2023 | 239 | |
| 2024 | 320 | |
| 2025 | 159 | |
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #64 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.