Neutropenia after Masitinib Mesylate in dogs

23 reports to the FDA describe neutropenia in dogs given Masitinib Mesylate. That is 15% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

23Reports
0.0%Marked serious
61%Recovered
0.0%Died or euthanised
–Typical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How the animals did

Recovered
10 43%
Recovered with lasting effects
4 17%
Not known
9 39%

Problems reported at the same time

Leucopenia
6 26%
Weight loss
2 8.7%
1 4.3%
Ascites
1 4.3%
Kidney problems
1 4.3%

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
7
8–11 years
7
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Masitinib Mesylate cause neutropenia in dogs?
23 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).

Neutropenia with similar medicines

All reported side effects of Masitinib Mesylate in dogs · Medicines most reported with neutropenia