Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your cat.
621
Total Reports
67
Deaths Reported
1080.0%
Death Rate
8.6 yr
Avg Age at Report
Average weight at time of report: 4.2 kg (9.3 lbs)
Top Reported Reactions
Vomiting 94
Lethargy (see also Central nervous system depression in 'Neurological') 72
Lack of efficacy (ectoparasite) - flea 65
Anorexia 55
Emesis 44
Diarrhoea 41
Weight loss 39
Death by euthanasia 29
Behavioural disorder NOS 29
Panting 28
Hyperactivity 26
Death 26
Not eating 26
Lack of efficacy - NOS 25
Ataxia 24
Most Referenced Drugs
Spinosad 98
Selamectin 77
Nitenpyram 58
Fluralaner Spot-On Solution 45
Imidacloprid + Moxidectin 42
Cefovecin 33
Frunevetmab 28
Selamectin;Sarolaner 21
Cefovecin Sodium 18
Maropitant Citrate 18
Meloxicam 17
Mirtazapine 16
Buprenorphine 15
Cyclosporine 12
Methylprednisolone Acetate 11
Outcome Breakdown
Recovered/Normal
183 (33.0%)
Outcome Unknown
150 (27.1%)
Ongoing
145 (26.2%)
Died
38 (6.9%)
Euthanized
29 (5.2%)
Recovered with Sequela
9 (1.6%)
Gender Distribution
Male 305 (49.1%)
Female 302 (48.6%)
Unknown 12 (1.9%)
Mixed 2 (0.3%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 49 | |
| 2011 | 27 | |
| 2012 | 40 | |
| 2013 | 74 | |
| 2014 | 51 | |
| 2015 | 42 | |
| 2016 | 44 | |
| 2017 | 46 | |
| 2018 | 33 | |
| 2019 | 34 | |
| 2020 | 19 | |
| 2021 | 27 | |
| 2022 | 25 | |
| 2023 | 48 | |
| 2024 | 38 | |
| 2025 | 24 | |
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #126 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.