Overdose after Pentobarbital + Phenytoin in dogs

90 reports to the FDA describe overdose in dogs given Pentobarbital + Phenytoin. That is 11% of all reports for this medicine, compared with 1.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

90Reports
84%Marked serious
0.0%Recovered
100%Died or euthanised
Same dayTypical onset
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How soon it started

Same day
60 98%
1–2 days
0 0.0%
3–7 days
1 1.6%
1–4 weeks
0 0.0%
Over a month
0 0.0%

How the animals did

Euthanised
90 100%

Problems reported at the same time

10 11%
Muscle stiffness
6 6.7%
Incorrect route of drug administration
3 3.3%

Age of the animals

Under 1 year
0
1–3 years
7
4–7 years
6
8–11 years
19
12+ years
45

About this medicine

Type: medicine.

Questions owners ask

Can Pentobarbital + Phenytoin cause overdose in dogs?
90 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 the same 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).

Overdose with similar medicines

All reported side effects of Pentobarbital + Phenytoin in dogs · Medicines most reported with overdose