Blood problems after Masitinib Mesylate in dogs

The FDA has received 45 reports of blood problems in dogs after Masitinib Mesylate. That is 29% of all reports for this medicine, compared with 1.8% across reports for all dog medicines, so it is reported unusually often with this medicine.

45Reports
0.0%Marked serious
22%Recovered
13%Died or euthanised
–Typical onset
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How the animals did

Recovered
4 8.9%
Recovered with lasting effects
6 13%
Died
6 13%
Not known
29 64%

Problems reported at the same time

Death
6 13%
Leucopenia
5 11%
Diarrhea
4 8.9%

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
11
8–11 years
20
12+ years
8

About this medicine

Type: medicine.

Questions owners ask

Can Masitinib Mesylate cause blood problems in dogs?
45 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).

Blood problems with similar medicines

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