Comprehensive- Kills Ticks And Fleas, Plus Adult And Juvenile Roundworms, Hookworms And Adult Whipworm, Plus Prevents Heartworm Disease And Flea Tapeworm Infestation.Fast*- Starts Killing Fleas Within 2 Hours, Protects For A Full Month. Demonstrated > 95% Efficacy For A Full Month Against Paralysis Ticks, Brown Dog Ticks And Bush Ticks.Convenient - Small, Tasty Chewable Tablet, Readily Accepted By Dogs And Puppies As Young As 8 Weeks.One Tablet Once A Month- It’S All You Need For Long-Lasting, Broad Spectrum Protection Against Parasites, So You Can Keep Your Dog Credelio Close. Available In 3 & 6 Packs.