Didn't stop fleas after Oclacitinib (Apoquel) in dogs

259 reports to the FDA describe didn't stop fleas in dogs given Oclacitinib. That is 0.9% of all reports for this medicine, compared with 6.2% across reports for all dog medicines, so it is reported less often than average with this medicine.

259Reports

11%Marked serious

5.0%Recovered

0.0%Died or euthanised

78 daysTypical onset

How soon it started

Same day

16 12%

1–2 days

4 3.1%

3–7 days

2 1.5%

1–4 weeks

26 20%

Over a month

82 63%

How the animals did

Recovered

11 4.2%

Recovered with lasting effects

2 0.8%

Still unwell when reported

109 42%

Not known

137 53%

Problems reported at the same time

Itching

56 22%

Didn't work as expected

17 6.6%

Hair loss

12 4.6%

Skin rash or irritation

10 3.9%

10 3.9%

10 3.9%

8 3.1%

7 2.7%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Oclacitinib controls itching from allergies (tablet, a JAK inhibitor).

Products with this ingredient include Apoquel. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Oclacitinib cause didn't stop fleas in dogs?: 259 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 78 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).

Didn't stop fleas with similar medicines

Didn't stop fleas after Cyclosporine (Atopica) 28 reports · 0.2% of its reports

All reported side effects of Oclacitinib in dogs · Medicines most reported with didn't stop fleas