Lethargy after Atipamezole in cats

95 reports to the FDA describe lethargy in cats given Atipamezole. That is 9.2% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported less often than average with this medicine.

95Reports
46%Marked serious
17%Recovered
26%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
33 49%
1–2 days
17 25%
3–7 days
7 10%
1–4 weeks
5 7.4%
Over a month
6 8.8%

How the animals did

Recovered
16 17%
Still unwell when reported
31 33%
Died
20 21%
Euthanised
5 5.3%
Not known
23 24%

Problems reported at the same time

Age of the animals

Under 1 year
27
1–3 years
23
4–7 years
13
8–11 years
19
12+ years
9

About this medicine

Type: medicine.

Questions owners ask

Can Atipamezole cause lethargy in cats?
95 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 1 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).

Lethargy with similar medicines

All reported side effects of Atipamezole in cats · Medicines most reported with lethargy