Bravecto is a chewable flea and tick preventative for dogs that contains the active ingredient fluralaner. It starts killing fleas and ticks within 2-12 hours and provides continuous protection against fleas, ticks, and flea infestations for 12 weeks with a single dose. Bravecto is easy to administer orally and has benefits like long-lasting protection, no need for monthly dosing, and safety for breeding, pregnant and lactating dogs. It is for dogs 8 weeks or older weighing at least 4.4 lbs and works by killing existing fleas and ticks and preventing future infestations for 12 weeks.