Itching after Amoxicillin in dogs

The FDA has received 79 reports of itching in dogs after Amoxicillin. That is 5.9% of all reports for this medicine, compared with 4.3% across reports for all dog medicines.

79Reports

62%Marked serious

18%Recovered

11%Died or euthanised

5 daysTypical onset

How soon it started

Same day

14 25%

1–2 days

9 16%

3–7 days

8 15%

1–4 weeks

8 15%

Over a month

16 29%

How the animals did

Recovered

8 10%

Recovered with lasting effects

6 7.6%

Still unwell when reported

23 29%

Died

3 3.8%

Euthanised

6 7.6%

Not known

33 42%

Problems reported at the same time

21 27%

17 22%

17 22%

17 22%

16 20%

13 16%

13 16%

Skin rash or irritation

11 14%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Amoxicillin treats bacterial infections.

Questions owners ask

Can Amoxicillin cause itching in dogs?: 79 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).

Itching with similar medicines

Itching after Amoxicillin + Clavulanate (Clavamox) 236 reports · 4.4% of its reports
Itching after Doxycycline 122 reports · 3.0% of its reports
Itching after Cefovecin (Convenia) 224 reports · 5.9% of its reports
Itching after Enrofloxacin (Baytril) 200 reports · 5.3% of its reports
Itching after Metronidazole 138 reports · 4.5% of its reports
Itching after Enrofloxacin + Silver Sulfadiazine 23 reports · 11% of its reports

All reported side effects of Amoxicillin in dogs · Medicines most reported with itching