Get rid of fleas and ticks fast with Frontline Plus For Dogs 89 -132 lbs. This long-lasting, powerful formula offers the most complete flea and tick control available. Frontline Plus works quickly to kill fleas of all life stages and multiple species of ticks, including those that could transmit Lyme disease. Frontline Plus will continue to provide protection for a full month after application. This 3 dose pack is ideal for dogs and puppies 8 weeks and older, weighing 89-132 lbs.