Behaviour change after Lufenuron in dogs

The FDA has received 20 reports of behaviour change in dogs after Lufenuron. That is 2.0% of all reports for this medicine, compared with 2.5% across reports for all dog medicines.

20Reports
10%Marked serious
5.0%Recovered
0.0%Died or euthanised
–Typical onset
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How the animals did

Recovered
1 5.0%
Still unwell when reported
1 5.0%
Not known
18 90%

Problems reported at the same time

4 20%
Pica
2 10%
Restlessness or agitation
2 10%
Vocalising
1 5.0%

Age of the animals

Under 1 year
3
1–3 years
9
4–7 years
5
8–11 years
3
12+ years
0

About this medicine

Lufenuron stops flea eggs from developing.

Questions owners ask

Can Lufenuron cause behaviour change in dogs?
20 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Behaviour change with similar medicines

All reported side effects of Lufenuron in dogs · Medicines most reported with behaviour change