Important: Adverse event reports are voluntarily submitted and do not prove causation. Consult your veterinarian for medical decisions about your cat.
1,162
Total Reports
112
Deaths Reported
960.0%
Death Rate
7.2 yr
Avg Age at Report
Average weight at time of report: 3.8 kg (8.4 lbs)
Top Reported Reactions
Lethargy (see also Central nervous system depression in 'Neurological') 161
Vomiting 160
Lack of efficacy (ectoparasite) - flea 132
Anorexia 107
Diarrhoea 80
Emesis 78
Behavioural disorder NOS 74
Lack of efficacy - NOS 65
Ataxia 64
Death 57
Weight loss 53
Not eating 52
Vocalisation 49
Death by euthanasia 48
Decreased appetite 45
Most Referenced Drugs
Spinosad 193
Selamectin 157
Nitenpyram 113
Fluralaner Spot-On Solution 94
Cefovecin 82
Imidacloprid + Moxidectin 58
Buprenorphine 57
Frunevetmab 52
Selamectin;Sarolaner 49
Maropitant Citrate 35
Isoflurane 30
Robenacoxib 29
Cefovecin Sodium 28
Mirtazapine 22
Fluralaner/Moxidectin Spot-On 21
Outcome Breakdown
Outcome Unknown
313 (29.5%)
Ongoing
312 (29.4%)
Recovered/Normal
306 (28.8%)
Died
68 (6.4%)
Euthanized
44 (4.1%)
Recovered with Sequela
18 (1.7%)
Gender Distribution
Male 579 (49.8%)
Female 543 (46.7%)
Unknown 30 (2.6%)
Mixed 10 (0.9%)
Reports by Year
| Year | Reports | Trend |
|---|---|---|
| 2010 | 59 | |
| 2011 | 56 | |
| 2012 | 74 | |
| 2013 | 111 | |
| 2014 | 83 | |
| 2015 | 64 | |
| 2016 | 62 | |
| 2017 | 94 | |
| 2018 | 88 | |
| 2019 | 80 | |
| 2020 | 64 | |
| 2021 | 41 | |
| 2022 | 50 | |
| 2023 | 101 | |
| 2024 | 88 | |
| 2025 | 47 | |
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Rank #104 by report volume. Data reflects voluntary submissions and may not represent actual incidence rates.