Death after Ampicillin in dogs

424 reports to the FDA describe death in dogs given Ampicillin. That is 43% of all reports for this medicine, compared with 5.2% across reports for all dog medicines, so it is reported unusually often with this medicine.

424Reports
94%Marked serious
0.2%Recovered
100%Died or euthanised
5 daysTypical onset
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How soon it started

Same day
70 20%
1–2 days
69 20%
3–7 days
54 16%
1–4 weeks
77 22%
Over a month
73 21%

How the animals did

Recovered
1 0.2%
Died
190 45%
Euthanised
232 55%
Not known
1 0.2%

Problems reported at the same time

Age of the animals

Under 1 year
85
1–3 years
64
4–7 years
98
8–11 years
117
12+ years
55

About this medicine

Type: medicine.

Questions owners ask

Can Ampicillin cause death in dogs?
424 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 5 days 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).

Death with similar medicines

All reported side effects of Ampicillin in dogs · Medicines most reported with death