Histiocytoma after Oclacitinib (Apoquel) in dogs
209 reports to the FDA describe histiocytoma in dogs given Oclacitinib. That is 0.7% of all reports for this medicine, compared with 0.0% across reports for all dog medicines, so it is reported unusually often with this medicine.
209Reports
32%Marked serious
19%Recovered
3.3%Died or euthanised
65 daysTypical onset
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How soon it started
How the animals did
Problems reported at the same time
Age of the animals
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 histiocytoma in dogs?
- 209 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 65 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).
All reported side effects of Oclacitinib in dogs · Medicines most reported with histiocytoma