One or more of these natural hairball remedies might help your cat:

• 1 teaspoon of bran daily.
• 1/8 teaspoon unflavored fiber product or unprocessed psyllium hulls daily.
• 1 teaspoon canned pumpkin or strained prunes daily.
• 1/8 teaspoon slippery elm daily.

These are all natural and can be combined as needed. Also, manufacturers have developed capsulated fiber products that can be opened and mixed in food.