Revolution Purple 2.3 - 4.5kg (5.1 - 10 Lbs.) an extra small dog’s dream drug. It’s specially created for dogs weighing anywhere between 2.3 - 4.5kg (5.1 - 10 Lbs.) Just like the Revolution brand’s Blue counterpart for cats, the Purple 3 pack for dogs is a multidimensional and comprehensive treatment for a variety of pet ailments, including:Fleas--adults, eggs, and larvaeHeartwormsIntestinal worms—inc. roundwormEar mitesScabies (Sarcoptic mange)Biting liceControls American Dog Tick infestations (Dermacentor Variabilis)Why buy 4 different treatments for 4 different parasites, when you can prevent them all with a single medication? Whether you’ve got a Chihuahua, Yorkie, or Pomeranian their tiny tails will wag with vigorous joy after a single treatment rids them of all their parasitic woes.