I used Comfortis for 3 months. It was recommended by my vet when frontline quit working. Both of my yorkie babies weight 3.4lbs so he called the company to find the safest dosage. They recommended cuting the lowest dosage in half. They both did fine on it. Then...recently I changed vets. She said no to Comfortis. Her feeling was that the product was too new and long term side effects weren't know. She also didn't like that it was given internally. She prefers topical. |