4OZ, UltraGuard rid worm liquid for cats. An easy-to-use solution for removing roundworms in cats and kittens. Simply measure one teaspoon (5mL) per 5 pounds of body weight. The syrup can be dropped directly into your pet's mouth or mixed into food. Cats may be dewormed at earliest between 6-8 weeks of age. The first treatment should be repeated 14 days later. If re-infestation is apparent, treat again in another 14 days. Be sure to store this product in a cool, dry place where temperatures do not exceed 86°F. Consult a veterinarian before using in severely debilitated animals.