The most common parasites you can find on your cats and dogs are fleas, ticks, and lice. These parasites can make their way into your home through an open window, a crack in the door, your pets, or you, without even knowing it. All these parasites can be really irritating and annoying for your cat or dog. They cause itching, hair loss, general discomfort, which can lead to worms, deplete blood supply, and even diseases. Effipro is a topical flea and tick preventative treatment for cats and dogs. Effipro kills and prevents the infestation of fleas, chewing lice, ticks, and mites. Effipro contains fipronil, a parasiticide that targets the nervous system of parasites causing paralysis and death. Effipro Plus also contains the powerful insecticide pyriproxyfen. Effipro is quick and easy to apply, and also mess-free. Effipro provides up to 4 weeks of protection and starts working the minute it is applied. It is also waterproof, so you don’t need to worry about your pet getting wet when he’s out on adventures.