Lufenuron side effects in cats
1,108 reports sent to the FDA between 1995 and 2022 involve Lufenuron in cats. The most reported problems were injection site reaction, lethargy, vomiting. 8.8% were marked serious, and where it was recorded, signs eased after stopping the medicine in 7% of cases.
1,108Reports
8.8%Marked serious
90%Only medicine involved
6.0%Recovered
8.4%Died or euthanised
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About this medicine
Lufenuron stops flea eggs from developing.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a cat still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (156 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Domestic 674 reports
- Domestic Shorthair 142 reports
- Siamese 33 reports
- Persian 33 reports
- Himalayan 26 reports
- Domestic Longhair 20 reports
- Maine Coon 15 reports
- Domestic Mediumhair 10 reports
- Ragdoll 8 reports
- Birman (sacred Birman) 5 reports
Other flea and tick treatments for cats
Spinosad (Comfortis)11,584 reports · 6.7% seriousNitenpyram (Capstar)8,744 reports · 11% seriousImidacloprid + Moxidectin (Advantage Multi)8,157 reports · 52% seriousFlumethrin + Imidacloprid (Seresto)674 reports · 40% seriousImidacloprid + Pyriproxyfen655 reports · 37% seriousFipronil503 reports · 21% seriousFipronil + S-methoprene (Frontline Plus)367 reports · 22% seriousImidacloprid252 reports · 20% serious