Behaviour change after Hydromorphone in dogs

27 reports to the FDA describe behaviour change in dogs given Hydromorphone. That is 2.5% of all reports for this medicine, compared with 2.5% across reports for all dog medicines.

27Reports
74%Marked serious
41%Recovered
11%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
11 46%
1–2 days
4 17%
3–7 days
5 21%
1–4 weeks
2 8.3%
Over a month
2 8.3%

How the animals did

Recovered
11 41%
Still unwell when reported
8 30%
Died
1 3.7%
Euthanised
2 7.4%
Not known
5 19%

Problems reported at the same time

Age of the animals

Under 1 year
0
1–3 years
9
4–7 years
7
8–11 years
8
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Hydromorphone cause behaviour change in dogs?
27 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 Hydromorphone in dogs · Medicines most reported with behaviour change