Like Advantage II, Frontline Plus for Cats contains an agent that inhibits flea growth and development. It might not work as well as the newer formulas available now, but it still works. Frontline for Cats was created by Merial, now a part of Boehringer Ingelheim, a global pharmaceutical company focused on improving animal health. Introduction To Frontline Plus & Its Reliability Since Years. How Does Frontline Flea and Tick for Cats Work? To date, the Frontline brand is one of the top two selling flea and tick products, with billions of doses administered since the 1970s. Frontline Gold for Cats doesn't just kill adult fleas and ticks, but also slays the next generation of flea eggs and larvae. One such product that has worked well till recent times is Frontline Plus. At the animal shelter, we used to get boxes of unused Frontline that had been donated by people or pet supply stores. In my experience, Frontline does still work. What this means is that it will kill adult fleas, larva and eggs within 12 hours of contact with your cats coat. Let us understand the functionality of this ingenious product in detail. Frontline Plus For Cats Versus Frontline Plus For Dogs. And we love the fact that this Fipronil kills both fleas and ticks on Kitty's body, while s-methoprene does in the flea eggs and larvae. The cats are still protected for a full four weeks, but the fleas wont die till they jump on the cat and eat the blood on them. Although FRONTLINE GOLDFOR CATS can control fleas for up to six weeks, if there is a high risk of reinfestation or if the pet has fleas which may cause flea allergy dermatitis, a once monthly application may be needed. Ensure Frontline is right for your cat. Also, the product does not enter your dogs or cats bloodstream; it operates on the surface, and within a day or two, the entire flea issue will be shushed away. Frontline contains fipronil, while Frontline Plus contains fipronil and s-methoprene. Since (S) methoprene inhibits the growth of insects and parasites, it destroys flea larvae and eggs that are present on your cats body. This product replaces Frontline for Cats with a more effective parasite control. It works because of two, tough killing ingredients. How does Frontline Work on your Cat? You can use Frontline Plus on your cat if they are eight weeks old or older and weigh more than 2.2 lbs (1kg). FRONTLINE GOLD FOR CATS kills ticks for at least one month. How quickly does Frontline work on cats? A once monthly application is recommended where tick control is needed. Even faster than Frontline Plus, Frontline Gold starts working within 30 minutes and lasts for 30 days! Frontline Plus is a flea and ticks preventative treatment that can be administered to dogs and cats aged 8 weeks of age and above. You simply apply the product to the skin between Kitty's shoulder blades, where he can't reach to lick it. Talk to your veterinarian before administering Frontline Plus to cats who have other medical problems, or cats that are aged, breeding, pregnant, nursing, or taking other medications. Do not double dose with flea meds or youll do damage to the cats internal organs with the toxic overdose. Frontline is carefully formulated to get rid of fleas within 12 hours of application. Yes, you need a different Frontline Plus product to treat either pet. The medication, if used appropriately, kills adult fleas within 18 hours and adult ticks within 2 days.