Cjewy is the worst for prescription medicine. There was a mishap with the dosage chewy sent my vet so my vet denied the order. Instead of notifying me about that Chewy just let it go until I called them to follow-up on my order. This resulted.in my sickness going 2 additional days without their medicine! YOU SUCK CHEWY. If i could afford to get the medicine for my 3 rescue dogs from the vet I would but I guess I have to sacrifice competency for low prices