Natural Dewormer For Cats. Our natural dewormers for cats not only work to rid your feline of pesky worms, but they do it without nasty side effects. Most dewormers for cats fall in the $10 to $20 range and may treat specific types of worms or a variety of worms.

How much is dewormer for cats? In ½ oz (15ml) of ningxia red, mix the following ingredients: Of your cat's body weight per day into her food.