Simparica Flea and Tick Chewable Tablets kills fleas before they can lay eggs; treats, controls and prevents flea infestations and controls flea allergy dermatitis. It treats and controls three types of Australian ticks including paralysis ticks, brown dog ticks and bush ticks. The active component sarolaner, quickly gets absorbed into the bloodstream and starts killing fleas within three hours and ticks within eight hours. It is a tasty monthly chew that is suitable for puppies from 8 weeks of age and as little as 1.25kg in weight. Kills 100 percent of fleas in 8 hours after treatment.