Drooling after Metronidazole in cats

35 reports to the FDA describe drooling in cats given Metronidazole. That is 8.9% of all reports for this medicine, compared with 5.6% across reports for all cat medicines, so it is reported unusually often with this medicine.

35Reports

51%Marked serious

51%Recovered

14%Died or euthanised

Same dayTypical onset

How soon it started

Same day

14 54%

1–2 days

5 19%

3–7 days

2 7.7%

1–4 weeks

4 15%

Over a month

1 3.8%

How the animals did

Recovered

18 51%

Still unwell when reported

6 17%

Died

3 8.6%

Euthanised

2 5.7%

Not known

6 17%

Problems reported at the same time

Lethargy

12 34%

Diarrhea

10 29%

Loss of appetite

8 23%

Foaming at the mouth

6 17%

6 17%

5 14%

5 14%

4 11%

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 cats?: 35 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 the same day 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 Cefovecin (Convenia) 386 reports · 4.4% of its reports
Drooling after Amoxicillin + Clavulanate (Clavamox) 102 reports · 4.3% of its reports
Drooling after Enrofloxacin (Baytril) 74 reports · 4.7% of its reports
Drooling after Amoxicillin 31 reports · 6.0% of its reports

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