Frontline Top Spot for Dogs 45-88 lbs, Purple, 3 Pack (1010179)
Frontline Top Spot for Dogs 45-88 lbs, 3 Month (Purple) starts working right away and kills all existing fleas on your dog within 24 hours. Fipronil, one of the main ingredients in Frontline Top Spot pet meds, is also effective against ticks and helps control sarcoptic mange on dogs.
Frontline for fleas
I've always had dogs (going on 40 years of pet ownership at this point), and I've used tons of different flea control products over the years. Frontline is – by far – the best I've ever used. Easy to apply, no side effects, no skin irritation, and fleas are gone in just days. Literally.