3 Monthly treatments. Kills fleas, ticks & mosquitoes. Effective & easy to use. Kills and repels deer tick, which carry Lyme disease. Hartz Advanced Care 3 in 1 Flea & Tick Drops For Dogs and Puppies weighing over 90 lbs. is the monthly treatment that effectively controls flea and tick infestations. This gentle formula kills and prevents adult fleas, ticks and mosquitoes. Kills adult fleas, ticks and mosquitoes round-the-clock for up to 30 days. Specially formulated for dogs. Spreads naturally with dog's movement. One tube gives 30 days protection. Read entire label before each use. Use only on dogs and puppies over 12 weeks of age. Made in the U.S.A.