Loss of appetite after Onsior in cats

56 reports to the FDA describe loss of appetite in cats given Onsior. That is 32% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

56Reports
71%Marked serious
8.9%Recovered
36%Died or euthanised
4 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
10 19%
1–2 days
10 19%
3–7 days
14 27%
1–4 weeks
12 23%
Over a month
6 12%

How the animals did

Recovered
4 7.1%
Recovered with lasting effects
1 1.8%
Still unwell when reported
29 52%
Died
5 8.9%
Euthanised
15 27%
Not known
2 3.6%

Problems reported at the same time

25 45%
20 36%
14 25%
Not drinking
14 25%
12 21%
Kidney problems
11 20%
Leucocytosis
10 18%
Hiding
10 18%

Age of the animals

Under 1 year
6
1–3 years
8
4–7 years
7
8–11 years
16
12+ years
19

About this medicine

Type: medicine.

Questions owners ask

Can Onsior cause loss of appetite in cats?
56 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 4 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).

Loss of appetite with similar medicines

All reported side effects of Onsior in cats · Medicines most reported with loss of appetite