Bradycardia after Acepromazine in dogs

The FDA has received 96 reports of bradycardia in dogs after Acepromazine. That is 5.5% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

96Reports
56%Marked serious
47%Recovered
13%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
66 94%
1–2 days
1 1.4%
3–7 days
0 0.0%
1–4 weeks
0 0.0%
Over a month
3 4.3%

How the animals did

Recovered
44 46%
Recovered with lasting effects
1 1.0%
Still unwell when reported
20 21%
Died
12 13%
Not known
19 20%

Problems reported at the same time

Age of the animals

Under 1 year
17
1–3 years
28
4–7 years
13
8–11 years
13
12+ years
5

About this medicine

Type: medicine.

Questions owners ask

Can Acepromazine cause bradycardia in dogs?
96 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).

Bradycardia with similar medicines

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