I have had my cat Tabby for 12 years now and have been using this on her for at least 5 years maybe longer. I love it.
She does great on it. My dog Bruiser (min pin mix) did not tolerate it so i use Trifexis on him. Trifexis is great because its a all in one pill. No longer having to use heart worm, and flea seperatley.
I think that each animal is individual just like humans. Some humans are allergic to sulfur where others aren't. As in animals some are allegic to a certain chemical compound where others aren't. No use taking it out on the vets.
I used to have a dachsund who was allergic to rabies vaccination. i didnt blame the vets how could they possible have known
Product or Service Mentioned: Banfield Pet Hospital Pet Vaccination.
Monetary Loss: $15.