What drugs can kill fleas on cats?

It is recommended to use drugs containing ingredients such as selenium sulfide and permethrin, and it is not recommended to use organophosphorus insecticides to avoid poisoning cats. Fleas are a common external parasite, and cats are mainly infected through contact with flea-contaminated clothing or environments. In addition, fleas can also spread internal parasites such as tapeworms, so it is necessary to protect against internal parasites as well.

To kill fleas on cats, drugs containing permethrin, selenium sulfide, and other ingredients are commonly used. These drugs are effective against common external parasites and have minimal harm to cats. However, cats should not lick the medication after application, so it is recommended to apply the drug to areas of the cat's body that are difficult to lick, such as the head or neck. The ingredients in these drugs are usually related active ingredients and skin absorption aids, so they do not need to be taken orally but rather applied to the skin. It is generally recommended to apply the medication to the cat's head or neck region, as cats are less likely to lick these areas. For young cats, it is generally recommended to perform external parasite prevention once a month. If a cat has already contracted an external parasite, in addition to treating the cat, it is also necessary to clean the environment and use pet-specific parasite prevention products to control the parasites in the environment.

Moreover, if a cat has contracted fleas, it is likely to be infected with tapeworms as well. Tapeworms mainly spread through flea bites. In this case, it is recommended to use internal parasite prevention drugs containing ingredients such as Fenbendazole and Milbemycin. Additionally, for the sake of the cat's health, it is recommended to have regular fecal examinations at a pet hospital to ensure that the parasites have been completely eliminated. Internal parasite prevention is generally recommended every two to three months, and for young cats, it is recommended to perform examinations once a month.