Didn't work as expected after Xylazine in cats

33 reports to the FDA describe didn't work as expected in cats given Xylazine. That is 19% of all reports for this medicine, compared with 8.7% across reports for all cat medicines, so it is reported unusually often with this medicine.

33Reports
36%Marked serious
58%Recovered
15%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
18 100%
1–2 days
0 0.0%
3–7 days
0 0.0%
1–4 weeks
0 0.0%
Over a month
0 0.0%

How the animals did

Recovered
19 58%
Still unwell when reported
1 3.0%
Died
2 6.1%
Euthanised
3 9.1%
Not known
8 24%

Problems reported at the same time

2 6.1%
Recovery prolonged
1 3.0%
Adipsia
1 3.0%
Underdose
1 3.0%
Incorrect dose administered
1 3.0%
Breathing problems
1 3.0%
Tachycardia
1 3.0%

Age of the animals

Under 1 year
5
1–3 years
3
4–7 years
0
8–11 years
1
12+ years
0

About this medicine

Type: medicine.

Questions owners ask

Can Xylazine cause didn't work as expected in cats?
33 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 the same day 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 work as expected with similar medicines

All reported side effects of Xylazine in cats · Medicines most reported with didn't work as expected