Didn't work as expected after Atipamezole in cats

The FDA has received 120 reports of didn't work as expected in cats after Atipamezole. That is 12% of all reports for this medicine, compared with 8.7% across reports for all cat medicines.

120Reports
33%Marked serious
27%Recovered
19%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
67 91%
1–2 days
3 4.1%
3–7 days
1 1.4%
1–4 weeks
2 2.7%
Over a month
1 1.4%

How the animals did

Recovered
32 27%
Still unwell when reported
22 18%
Died
18 15%
Euthanised
5 4.2%
Not known
43 36%

Problems reported at the same time

21 18%
Drug administration error
7 5.8%
6 5.0%
Underdose
6 5.0%

Age of the animals

Under 1 year
26
1–3 years
17
4–7 years
26
8–11 years
17
12+ years
4

About this medicine

Type: medicine.

Questions owners ask

Can Atipamezole cause didn't work as expected in cats?
120 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 Atipamezole in cats · Medicines most reported with didn't work as expected