Didn't work as expected after Ampicillin in dogs

The FDA has received 139 reports of didn't work as expected in dogs after Ampicillin. That is 14% of all reports for this medicine, compared with 13% across reports for all dog medicines.

139Reports

72%Marked serious

10%Recovered

44%Died or euthanised

10 daysTypical onset

How soon it started

Same day

17 16%

1–2 days

18 17%

3–7 days

11 10%

1–4 weeks

23 21%

Over a month

38 36%

How the animals did

Recovered

13 9.4%

Recovered with lasting effects

1 0.7%

Still unwell when reported

37 27%

Died

25 18%

Euthanised

36 26%

Not known

27 19%

Problems reported at the same time

61 44%

50 36%

48 35%

44 32%

40 29%

39 28%

28 20%

27 19%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Ampicillin cause didn't work as expected in dogs?: 139 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 10 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).

Didn't work as expected with similar medicines

Didn't work as expected after Melarsomine (Immiticide) 646 reports · 2.8% of its reports
Didn't work as expected after Polysulfated Glycosaminoglycan 698 reports · 13% of its reports
Didn't work as expected after Diphenhydramine 585 reports · 12% of its reports
Didn't work as expected after Butorphanol 1,022 reports · 23% of its reports
Didn't work as expected after Cefpodoxime 671 reports · 17% of its reports
Didn't work as expected after Tramadol 475 reports · 13% of its reports
Didn't work as expected after Florfenicol + Mometasone + Terbinafine 969 reports · 27% of its reports
Didn't work as expected after Desoxycorticosterone Pivalate 355 reports · 11% of its reports
Didn't work as expected after Propofol 600 reports · 20% of its reports
Didn't work as expected after Dirlotapide 712 reports · 25% of its reports

All reported side effects of Ampicillin in dogs · Medicines most reported with didn't work as expected