Vomiting after Lufenuron in dogs

325 reports to the FDA describe vomiting in dogs given Lufenuron. That is 32% of all reports for this medicine, compared with 28% across reports for all dog medicines.

325Reports
0.9%Marked serious
4.3%Recovered
6.8%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
6 43%
1–2 days
2 14%
3–7 days
0 0.0%
1–4 weeks
1 7.1%
Over a month
5 36%

How the animals did

Recovered
14 4.3%
Still unwell when reported
2 0.6%
Died
22 6.8%
Not known
287 88%

Problems reported at the same time

Age of the animals

Under 1 year
41
1–3 years
94
4–7 years
85
8–11 years
64
12+ years
25

About this medicine

Lufenuron stops flea eggs from developing.

Questions owners ask

Can Lufenuron cause vomiting in dogs?
325 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.
How soon after a dose was it reported?
In half of the reports with dates, it started within 2 days of the first dose.
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).

Vomiting with similar medicines

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