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

Updated On September 23rd, 2025

Pet's info: Dog | Golden Retriever | Female | spayed | 1 year and 2 months old | 65 lbs

how long should a dog have giardia?? my 11 month old Golden retriever pup has had loose stool for over 3 weeks and has been on Flagyl (sorry for the wrong spelling). we claled the vet and she said we need another more expensive medicine and can take months. we’ve not been able to send my dog to daycare so shes become very sad. do you think the vet is bs-ing us and should we get w second opinion??

1 Answer

Most Helpful Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on April 13th, 2018

Giardia can be a little challenging to resolve, but I'm not sure why it would take months. It is possible for dogs to reinfect themselves, so that may be your veterinarian's concern if Kipper had a severe infection. Flagyl (which you spelled correctly) does not always work, so sometimes we combine it with Fenbendazole for better results. I am attaching a link to a handout below with more information about Giardia. https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=2386 I sympathize with Kipper not being able to go to daycare. My youngest dog lives to go to daycare with his friends. I would ask your veterinarian why they think this will take months to resolve with the new medication and what testing you should be doing to make sure the infection is improving and that there isn't another problem going on. Good luck! I hope that was helpful. Thanks for using PetCoach.

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