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My dogs have diarrhea. Is it contagious? Can my dog take metro again?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | 10 months and 1 day old | 12 lbs

Bella got diarrhea 2 weeks ago, given metronidazole for 7 days. Fecal neg for parasites at lab. Pepper now has diarrhea. Acting normal. We thought Bella had dietary cause but if it was an illness would it take this long for Pepper to show symptoms? Also, if vet decides to treat both with metro, can Bella have it again this soon? She just finished metro Thursday (19th)

1 Answer

Most Helpful Answer

Rodrigo Roca, DVM

Answered By Rodrigo Roca, DVM

Veterinarian

Published on October 23rd, 2017

Hello, if it was infectious, depending on the virus or parasite, you can get an incubation period which may delay the onset of clinical signs. Additionally, the events may be unrelated. That is, Pepper could be having its own cause for the diarrhea.

In terms of the metronidazole, Bella is safe to continue to receive it if your veterinarian deems so necessary.

You could use a bland diet (plain white rice, boiled skinless and boneless chicken, and low fat cottage cheese) for 3-5 days to see if this helps their clinical signs resolve. If not, then you should have your veterinarian evaluate them immediately.

Hope this helps and best of luck.
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