Behaviour change after Diazepam in dogs

66 reports to the FDA describe behaviour change in dogs given Diazepam. That is 9.7% of all reports for this medicine, compared with 2.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

66Reports
71%Marked serious
24%Recovered
23%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
23 45%
1–2 days
10 20%
3–7 days
4 7.8%
1–4 weeks
3 5.9%
Over a month
11 22%

How the animals did

Recovered
12 18%
Recovered with lasting effects
4 6.1%
Still unwell when reported
23 35%
Died
9 14%
Euthanised
6 9.1%
Not known
12 18%

Problems reported at the same time

Age of the animals

Under 1 year
6
1–3 years
13
4–7 years
19
8–11 years
17
12+ years
10

About this medicine

Type: medicine.

Questions owners ask

Can Diazepam cause behaviour change in dogs?
66 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 Diazepam in dogs · Medicines most reported with behaviour change