Weighing 61 to 90 lbs. Kills fleas, ticks & mosquitoes. Effective & easy to use. 3 monthly treatments. Kills and repels the deer tick, which may carry Lyme disease. Hartz Advanced Care 3 in 1 Flea & Tick Drops For Dogs and Puppies weighing 61 to 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. Made in the U.S.A.