How Does Frontline Kill Fleas?

Frontline is a product for killing flea infestations on pets, such as dogs and cats. The product is available in three forms, which are Frontline Spray, Frontline Topspot and Frontline Plus. The spray is administered by veterinarians and usually for severe outbreaks. Topspot is used at home and kills adult fleas. Frontline Plus kills the larvae, eggs and adult fleas.

How does it work?

Frontline can completely kill fleas on a household pet. It contains an active ingredient called fipronil, which is absorbed in to the pet’s skin and oil glands. Frontline is released into the pet’s skin and hair follicles every time the oil glands are triggered. The product stays in the oil gland for up to 30 days. It works by killing any fleas that comes in contact with the application. It can also stop tick infestations and the treatment should be repeated every 30 days.

 How Long Does It Take?

Fleas will die with 24 hours of coming in contact of a treated cat or dog. Ticks can take up to 48 hours. It can take up to 24 hours for Frontline to move from the skin and to the rest of the body.  At this point, any insect that comes in contact with the pet’s coat will die.

Pet Safety

Frontline products are safe for all animals. It can be used on puppies that are eight weeks or older and can be used on nursing or pregnant animals. However, there are rare cases of the animal developing sensitivity to the product and an irritation in the application spot. If the irritation continues, then you want to contact a veterinarian.