Itching after Lufenuron in dogs

178 reports to the FDA describe itching in dogs given Lufenuron. That is 17% of all reports for this medicine, compared with 4.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

178Reports
2.8%Marked serious
1.1%Recovered
1.1%Died or euthanised
–Typical onset
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How the animals did

Recovered
2 1.1%
Still unwell when reported
4 2.2%
Died
2 1.1%
Not known
170 96%

Problems reported at the same time

Age of the animals

Under 1 year
18
1–3 years
48
4–7 years
63
8–11 years
28
12+ years
11

About this medicine

Lufenuron stops flea eggs from developing.

Questions owners ask

Can Lufenuron cause itching in dogs?
178 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).

Itching with similar medicines

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