Puppy's dark green, sticky, smelly poop on metronidazole: Should I worry?

I agree that this poop is quite a bright color yellow! This is not normally caused by metronidazole, so it's hard to say why it might be happening. Poop can sometimes be yellow or orange in color, and it may not mean anything in particular... so I wouldn't necessarily be concerned unless it stays this was for several days in a row, or she's having other symptoms of a problem. If she's still acting normal and this stool is improved vs. yesterday (which I'm assuming it is, since it definitely looks better than bloody diarrhea!) it should be okay to continue on her meds as prescribed by your vet, and monitor for the next few days. If her stool is not back to normal within the next 3-5 days, or if she develops other new symptoms in the meantime, then I would recommend having her rechecked by your veterinarian.

Hi! I would say that it is likely ok. Sometimes it takes a bit longer to see results. If it is just soft and Snowball is otherwise fine, I would just give it a few days before getting concerned. Keep in mind that metronidazole is not always a curative medication for diarrhea but rather an antibiotic with anti-inflammatory properties that help with colitis. This means that it will not treat an underlying disease every time. Perhaps try a few days on a bland diet mostly composed of boiled chicken or turkey and rice. If no resolution within a few days, it may be appropriate to start her on a probiotic or try a different medication such as Tylosin. Best of luck with her!

Not typically. Metronidazole does not have any listed side effects like that. Some common side effects are: Nausea or vomiting. Diarrhea. Drooling. Gagging or regurgitation. Loss of appetite. Lethargy or fatigue. Blood or darkening of urine. Fever. So, If the stools are very dark brown that is not really a problem, but black, that is serious and you should call your vet. Black typically means there is bleeding somewhere in the GI tract. If he is straining to defecate he may be constipated but straining can also be from diarrhea (if the stools are very soft/watery). I really don't have quite enough information to be helpful so I think it is probably best if you call your vet. If you want to do a one on one consultation with one our vets where we can chat back and forth then we may be able to help you better.

Hello. A dark discoloration of urine is a common finding when patients are on Metronidazole. The stool discoloration is most certainly due to a change in diet. The urine will return to normal once the antibiotics are finished & his stools should normalize once his GI tract gets used to the new food. I do hope Marshall is beginning to feel better. Thanks for contacting Petco Pet Education Center, formerly Petcoach.

Hi there and thank you for using pet coach to address your concern. Yes, metronidazole can cause diarrhea. If you are seeing diarrhea or vomiting while on this antibiotic I would recommend discontinuing the drug and contacting the prescribing veterinarian to discuss this further. I hope this helps guide you in the right direction. Please let me know if you have any other questions or concerns. I would add in a probiotics such as Purina fortiflora as well.

This may not be unusual. Pets with diarrhea will often flush out the distal colon and it can take 2-3 days before the stool is present again in the colon. Make sure Figlio is eating well and acting normal. This is generally a good indication that he is recovering as expected. If he does not have a bowel movement after 3 days or if he seems to be feeling ill again, have him re-examined. Daily walks will help the bowels to move as well. Lastly, make sure he is drinking plenty of water. I hope this helps and that he continues to recover well.

Hi and thank you for using PetCoach. I am sorry to hear that Beau is having diarrhea. Since, Beau has only been on metronidazole for one day, I would continue it as it may not have started to work yet. It typically takes 24-48 hours to see any changes. However, if Beau stops eating, is lethargic or has blood in his stool, I would reach out to your veterinarian again and let them know. Beau may need another physical exam or other medications. Here is an article on diarrhea in cats that may be helpful for you and Beau: https://www.petcoach.co/article/diarrhea-in-cats/ Good luck and I hope he feels better soon!