Is Comfortis bad for dogs? Comfortis has demonstrated to be safe in healthy dogs and cats when used according to label directions. Use only for cats and kittens 14 weeks of age or older and 4.1 pounds of body weight or greater, and for dogs and puppies 14 weeks of age and older and 5.0 pounds of body weight or greater.
Is Comfortis the best flea treatment? Overall winner is Comfortis.
Comfortis not only kills fleas but works as a preventative that will continue to keep your dog safe from fleas.
Is Comfortis still available? Comfortis can be found in your veterinarian’s office—your source for the best pet health care advice.
What is replacing Comfortis? Capstar is a one-time use flea pill that can be used to eliminate an existing infestation. It’s a quick-acting oral tablet that begins functioning in 30 minutes and can be acquired at a low cost at BudgetPetCare.