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My senior dog has bloody poop again after finishing medication.

Updated On September 23rd, 2025

Pet's info: Dog | American Cocker Spaniel | Male | neutered | 13 years old | 28 lbs

My dog is 13. He has been on a round of amoxicillin, sucralfate and metronidazole for an infection. He has been off the meds for 4 days and he now again has blood in his poop.

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on September 10th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Sebby! If the bloody stool is reoccurring and due to his age I would do blood work, be sure a rectal exam was done, fecal testing, and his anal glands were checked. I would consider a prescription GI diet for several weeks and a probiotic. He may have underlying intestinal disease like inflammatory bowel disease, low B12, pancreatic disease or simple isn't digesting his food the same way. I wish you the best!

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