Breathing problems after Acepromazine in cats

The FDA has received 40 reports of breathing problems in cats after Acepromazine. That is 6.8% of all reports for this medicine, compared with 4.7% across reports for all cat medicines.

40Reports
60%Marked serious
30%Recovered
35%Died or euthanised
Same dayTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
15 52%
1–2 days
8 28%
3–7 days
1 3.4%
1–4 weeks
2 6.9%
Over a month
3 10%

How the animals did

Recovered
12 30%
Still unwell when reported
8 20%
Died
11 28%
Euthanised
3 7.5%
Not known
6 15%

Problems reported at the same time

14 35%
Vocalising
9 23%
Blood problems
7 18%
Tachycardia
7 18%

Age of the animals

Under 1 year
15
1–3 years
7
4–7 years
2
8–11 years
3
12+ years
9

About this medicine

Type: medicine.

Questions owners ask

Can Acepromazine cause breathing problems in cats?
40 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).

Breathing problems with similar medicines

All reported side effects of Acepromazine in cats · Medicines most reported with breathing problems