Dehydration after Ampicillin in dogs

105 reports to the FDA describe dehydration in dogs given Ampicillin. That is 11% of all reports for this medicine, compared with 0.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

105Reports
86%Marked serious
11%Recovered
52%Died or euthanised
5 daysTypical onset
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How soon it started

Same day
13 15%
1–2 days
17 20%
3–7 days
19 22%
1–4 weeks
26 30%
Over a month
12 14%

How the animals did

Recovered
12 11%
Still unwell when reported
27 26%
Died
14 13%
Euthanised
41 39%
Not known
11 10%

Problems reported at the same time

Age of the animals

Under 1 year
17
1–3 years
16
4–7 years
25
8–11 years
31
12+ years
13

About this medicine

Type: medicine.

Questions owners ask

Can Ampicillin cause dehydration in dogs?
105 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).

Dehydration with similar medicines

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