Neutrophilia after Ampicillin in dogs

The FDA has received 108 reports of neutrophilia in dogs after Ampicillin. That is 11% of all reports for this medicine, compared with 0.6% across reports for all dog medicines, so it is reported unusually often with this medicine.

108Reports
81%Marked serious
9.3%Recovered
49%Died or euthanised
4 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
19 22%
1–2 days
15 17%
3–7 days
18 20%
1–4 weeks
23 26%
Over a month
13 15%

How the animals did

Recovered
10 9.3%
Still unwell when reported
34 31%
Died
12 11%
Euthanised
41 38%
Not known
11 10%

Problems reported at the same time

Age of the animals

Under 1 year
17
1–3 years
15
4–7 years
30
8–11 years
27
12+ years
19

About this medicine

Type: medicine.

Questions owners ask

Can Ampicillin cause neutrophilia in dogs?
108 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 4 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).

Neutrophilia with similar medicines

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