Vomiting after Ampicillin in dogs

The FDA has received 382 reports of vomiting in dogs after Ampicillin. That is 39% of all reports for this medicine, compared with 28% across reports for all dog medicines.

382Reports
78%Marked serious
11%Recovered
51%Died or euthanised
5 daysTypical onset
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How soon it started

Same day
62 20%
1–2 days
58 18%
3–7 days
57 18%
1–4 weeks
77 24%
Over a month
63 20%

How the animals did

Recovered
41 11%
Recovered with lasting effects
1 0.3%
Still unwell when reported
107 28%
Died
64 17%
Euthanised
132 35%
Not known
37 9.7%

Problems reported at the same time

Age of the animals

Under 1 year
44
1–3 years
64
4–7 years
111
8–11 years
108
12+ years
50

About this medicine

Type: medicine.

Questions owners ask

Can Ampicillin cause vomiting in dogs?
382 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).

Vomiting with similar medicines

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