My dog has Giardia, Flagyl not working. Need a second opinion?

Ths can be a tricky disease to get rid of. The diarrhea caused by Giardia can lead to colitis, an inflammation in the bowel wall, which can make the diarrhea worse and/or persist despite the treatment. You will need to make sure you are cleaning up all of Kenai’s feces daily so that he does not become reinfected. It may also be helpful to ask your veterinarian about adding a probiotic to Kenai’s treatment plan. This can help the diarrhea clear up more quickly. And finally, it may be worth retesting Kenai’s feces to make sure nothing else is going on. He may need an additional antibiotic to help clear up the diarrhea. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.

It sounds like you are doing everything right. I would keep treating her if she still has cysts in the stools. When they "clear" the giardia is completely dependent on the dog. There is not cut and dry answer to that question. Same goes with how many rounds of treatment they will need. Some puppies clear it with one course of medication. Others take months of treatment. Just keep working closely with your vet. Here is a link to more information about giardia in dogs. I think you should consider using a probiotic along with treatment. Any probiotic made for dogs would be OK but I highly recommend you use Fortiflora. https://vcahospitals.com/know-your-pet/giardia-in-dogs https://www.allivet.com/p-1130-purina-pro-plan-veterinary-diets-fortiflora-dog-supplement-box-of-30.aspx

Most giardia does respond to panacur. Many vets will also combine this with metronidazole if they cannot get the parasite to clear. Retest the giardia after 6 weeks from the last treatment to see if the parasite is still present. I hope this is helpful and please feel free to post any additional questions.

Some dogs that have an underlying disease like inflammatory bowel disease do need long term antibiotic use, but it is best to have a diagnosis before continuing medications long term for two reasons: one is that antibiotic usage can sometimes mask the underlying problem, and the other is that there can be effects on the gastrointestinal flora. There are many diseases that could cause chronic diarrhea including a food intolerance, pancreatitis, or inflammatory bowel disease as stated above. I would recommend talking to your veterinarian to see if other tests or treatments are recommended at this point to try to diagnose the problem - some additional tests might include a pancreatic lipase test, cobalamin/folate, abdominal ultrasound or even obtaining intestinal biopsy samples to try to determine what might be causing chronic diarrhea. You might also want to talk to your veterinarian about a hypoallergenic food trial.

Hi there. In my experience, it often takes 48 hours or so to see improvement in diarrhea after starting metronidazole. Full resolution of the problem may take another 2-3 days from there. So if Jake's diarrhea seems to be improving and his appetite is better, this is a good sign. I would continue with the current treatment plan prescribed by your veterinarian. If his diarrhea has not resolved in another 2-3 days, then I would recommend taking him back in for a recheck to see if some other type of treatment is needed.

If Lexi is still playful and eating, and her stools are improving (even if they're not normal yet), then it sounds like you're on the right track. I would continue with her course of flagyl as your vet prescribed. If her stools don't continue to get firmer, you might want to ask your vet about adding a probiotic, or even consider the Hills Biome prescription food, which has been shown to be very effective for diarrhea issues. If the diarrhea worsens again, reach back out to your vet. We often start by treating diarrhea fairly symptomatically and supportively, but there are many other potential causes of diarrhea including Addisons disease, intestinal parasites, inflammatory bowel, food sensitivities, etc - so depending on the diagnostics your vet ran on Lexi initially, they may recommend further workup if this issue becomes recurrent. Hope this helps! Feel free to reach out if you have any follow-up questions.

Hi and thanks for your question. If the diarrhea starts again after the metronidazole, it could any number of issues. If she was diagnosed with a parasite, like Giardia, or a bacteria, it could be she still has the parasite or bacterial present in her GI and will need another round of metronidazole. That is not totally uncommon. A viral infection may be another possibility as well as a food allergy or inflammatory bowel disease. I hope this helped!