Behaviour change after Acepromazine in dogs

83 reports to the FDA describe behaviour change in dogs given Acepromazine. That is 4.7% of all reports for this medicine, compared with 2.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

83Reports
63%Marked serious
39%Recovered
19%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
26 41%
1–2 days
13 20%
3–7 days
5 7.8%
1–4 weeks
3 4.7%
Over a month
17 27%

How the animals did

Recovered
32 39%
Still unwell when reported
17 20%
Died
6 7.2%
Euthanised
10 12%
Not known
18 22%

Problems reported at the same time

Age of the animals

Under 1 year
6
1–3 years
26
4–7 years
24
8–11 years
18
12+ years
5

About this medicine

Type: medicine.

Questions owners ask

Can Acepromazine cause behaviour change in dogs?
83 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).

Behaviour change with similar medicines

All reported side effects of Acepromazine in dogs · Medicines most reported with behaviour change