Drooling after Metronidazole in dogs

110 reports to the FDA describe drooling in dogs given Metronidazole. That is 3.6% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

110Reports

69%Marked serious

15%Recovered

27%Died or euthanised

2 daysTypical onset

How soon it started

Same day

30 32%

1–2 days

20 22%

3–7 days

11 12%

1–4 weeks

14 15%

Over a month

18 19%

How the animals did

Recovered

14 13%

Recovered with lasting effects

3 2.7%

Still unwell when reported

43 39%

Died

11 10%

Euthanised

19 17%

Not known

20 18%

Problems reported at the same time

56 51%

56 51%

53 48%

49 45%

32 29%

30 27%

26 24%

23 21%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Metronidazole treats some bacterial and parasitic gut infections.

Questions owners ask

Can Metronidazole cause drooling in dogs?: 110 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 2 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).

Drooling with similar medicines

Drooling after Amoxicillin + Clavulanate (Clavamox) 130 reports · 2.4% of its reports
Drooling after Doxycycline 118 reports · 2.9% of its reports
Drooling after Cefovecin (Convenia) 97 reports · 2.6% of its reports
Drooling after Enrofloxacin (Baytril) 118 reports · 3.1% of its reports
Drooling after Amoxicillin 39 reports · 2.9% of its reports

All reported side effects of Metronidazole in dogs · Medicines most reported with drooling