Adipsia after Fentanyl in dogs

45 reports to the FDA describe adipsia in dogs given Fentanyl. That is 7.2% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

45Reports
47%Marked serious
62%Recovered
16%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
17 43%
1–2 days
10 25%
3–7 days
5 13%
1–4 weeks
2 5.0%
Over a month
6 15%

How the animals did

Recovered
26 58%
Recovered with lasting effects
2 4.4%
Died
2 4.4%
Euthanised
5 11%
Not known
10 22%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
11
4–7 years
10
8–11 years
18
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Fentanyl cause adipsia in dogs?
45 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).

Adipsia with similar medicines

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