The main ingredients of common external anthelmintics are selamectin, fipronil, etc. These ingredients are safe for cats. However, if the cat licks the deworming medicine, it may still have some adverse reactions.

After licking a large amount of the drug at one time, poisoning is likely to occur Phenomenon. Therefore, when this happens to a cat, the owner needs to observe whether the cat has other abnormalities. If so, the cat needs to be sent to the pet hospital for examination and treatment in time.