Diarrhea after Lufenuron in cats

67 reports to the FDA describe diarrhea in cats given Lufenuron. That is 6.0% of all reports for this medicine, compared with 5.1% across reports for all cat medicines.

67Reports

9.0%Marked serious

7.5%Recovered

6.0%Died or euthanised

–Typical onset

How the animals did

Recovered

5 7.5%

Still unwell when reported

1 1.5%

Died

4 6.0%

Not known

57 85%

Problems reported at the same time

39 58%

28 42%

16 24%

11 16%

8 12%

6 9.0%

5 7.5%

5 7.5%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Lufenuron stops flea eggs from developing.

Questions owners ask

Can Lufenuron cause diarrhea in cats?: 67 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).

Diarrhea with similar medicines

Diarrhea after Spinosad (Comfortis) 277 reports · 2.4% of its reports
Diarrhea after Nitenpyram (Capstar) 247 reports · 2.8% of its reports
Diarrhea after Imidacloprid + Moxidectin (Advantage Multi) 213 reports · 2.6% of its reports
Diarrhea after Imidacloprid + Pyriproxyfen 22 reports · 3.4% of its reports

All reported side effects of Lufenuron in cats · Medicines most reported with diarrhea