Petromalt Hairball Relief - Malt Flavor is an intestinal lubricant that helps relieve constipation dry cough and occasional vomiting associated with hairballs. It is also a gentle laxative against the formation of hairballs. Petromalt is the original hairball relief. It is safe and effective for cats and kittens over 4 weeks of age. 

Ingredients:
Mineral Oil 10.8% Petrolatum 32.8% Inactive Acacia Gum, Acidified Calcium Sulfate, Barley Malt Syrup, Caramel, Glycerin, Potassium Sorbate, Sodium Benzoate, Thiamine HCI, Water.. 

Directions for Use To eliminate hairballs
Give orally a strip of 1.25 cm (1/2 inch) per 2 kg (4.4 lbs) of body weight, once daily for 3-4 days.

To prevent hairballs 
Give orally a strip of 1.25 cm (1/2 inch) per 2 kg (4.4 lbs) of body weight, 1 to 2 times per week. Brush coat frequently.