Diarrhea after Metronidazole in dogs

1,114 reports to the FDA describe diarrhea in dogs given Metronidazole. That is 36% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

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How soon it started

How the animals did

Problems reported at the same time

Age of the animals

About this medicine

Metronidazole treats some bacterial and parasitic gut infections.

Questions owners ask

Can Metronidazole cause diarrhea in dogs?

1,114 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 6 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).

Diarrhea with similar medicines

• Diarrhea after Amoxicillin + Clavulanate (Clavamox) 505 reports · 9.4% of its reports
• Diarrhea after Doxycycline 301 reports · 7.5% of its reports
• Diarrhea after Cefovecin (Convenia) 377 reports · 9.9% of its reports
• Diarrhea after Enrofloxacin (Baytril) 365 reports · 9.7% of its reports
• Diarrhea after Amoxicillin 177 reports · 13% of its reports

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