Got this as a recommendation from a friend who is a vet as they notice when the dogs are recommended it as the owners who have used have had positive results. As for my use the product works amazingly while my dogs were on it. Only one of them has the issue that developed after adoption. Most likely due to stress and such from the traveling and separation from her litter. I’ve done 2 rounds of it and it seems to be getting less and less but comes back from zero eating a couple days after it gets out of their system. I’m hopefully the next round nips it in the bud. Having to spread it out over a couple months per dosage recommendations