Puppy giardia not clearing after Panacur. What are my options?
Updated On September 23rd, 2025
Pet's info: Dog | English Mastiff | Female | unspayed | 4 months and 23 days old | 30 lbs
Hello. My puppy has had giardia since I got her in December from Petland. She has had 3 treatments of panacur and is about to start her 4th. Should the giardia be gone by now? Is there something else that I can do to get rid of it?
4 Answers
Most Helpful Answer
Published on March 1st, 2019
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.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on March 5th, 2020
The 2 drugs mentioned are the most effective ones used to treat Giardiasis. They can be used concurrently for stubborn infections. It is possible Moses is reinfecting himself. Be sure to clean up any stool immediately after he is done. Hard surfaces can be disinfected with a bleach and water solution. He should also be bathed to remove any infectious cysts that may be on his coat. Feed a bland or easily digestible diet until his stool is normal. Support his gut health with a veterinary probiotic such as FortiFlora, ProStora or ProViable.
2Pet Parents found this answer helpful
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Published on December 23rd, 2017
There is actually more than one mediation that can treat this, metronidazole or fenbendazole. If a round of each has been used, then the best option is a bland diet such as Science diet I/D and a probiotic. This allows the healthy bacteria to populate to help control and rid the infection in a different manner
1Pet Parents found this answer helpful
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Published on August 17th, 2017
Giardia can sometimes be difficult to get rid of completely although I have had good success using a combination of Metronidazole and Fenbendazole. Metronidazole is only available through licensed veterinarians. It is also important to bathe all the dogs and clean the environment well, as they can continue to reinfect themselves and each other. A solution of bleach (1 part bleach to 32 parts water) sprayed on the contaminated surface and allowed to sit for 1 minute will kill Giardia. Finally, Giardia can be transmitted to people, so good hygiene and hand washing is important.
2Pet Parents found this answer helpful
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