Vomiting after Fentanyl in dogs

143 reports to the FDA describe vomiting in dogs given Fentanyl. That is 23% of all reports for this medicine, compared with 28% across reports for all dog medicines.

143Reports
64%Marked serious
38%Recovered
32%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
37 31%
1–2 days
25 21%
3–7 days
12 9.9%
1–4 weeks
17 14%
Over a month
30 25%

How the animals did

Recovered
49 34%
Recovered with lasting effects
5 3.5%
Still unwell when reported
12 8.4%
Died
12 8.4%
Euthanised
34 24%
Not known
31 22%

Problems reported at the same time

Age of the animals

Under 1 year
5
1–3 years
32
4–7 years
40
8–11 years
39
12+ years
12

About this medicine

Type: medicine.

Questions owners ask

Can Fentanyl cause vomiting in dogs?
143 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 2 days 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).

Vomiting with similar medicines

All reported side effects of Fentanyl in dogs · Medicines most reported with vomiting