Broadline is a broad spectrum spot-on solution designed specifically for all breeds of cats. It is used to treat various infestations such as tapeworms, roundworms, and external parasites such as fleas, ticks, and mange. Broadline also prevents future flea infestations for at least one month and restricts environmental flea contamination as well. It is also used to cure a type of worm that infests the bladder as well as two types of cat lungworm. Moreover, it is also effective in preventing heartworm disease for 30 days. Lastly, this product is safe to use on kittens over the age of 8 weeks.