Lethargy after Diazepam in dogs

The FDA has received 128 reports of lethargy in dogs after Diazepam. That is 19% of all reports for this medicine, compared with 11% across reports for all dog medicines, so it is reported unusually often with this medicine.

128Reports
78%Marked serious
22%Recovered
38%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
39 38%
1–2 days
25 24%
3–7 days
11 11%
1–4 weeks
11 11%
Over a month
18 17%

How the animals did

Recovered
25 20%
Recovered with lasting effects
3 2.3%
Still unwell when reported
37 29%
Died
22 17%
Euthanised
27 21%
Not known
14 11%

Problems reported at the same time

Age of the animals

Under 1 year
13
1–3 years
22
4–7 years
29
8–11 years
35
12+ years
27

About this medicine

Type: medicine.

Questions owners ask

Can Diazepam cause lethargy in dogs?
128 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).

Lethargy with similar medicines

All reported side effects of Diazepam in dogs · Medicines most reported with lethargy