Toltrazuril is a coccidiosis preventative and treatment for puppies. It can be used to protect puppies starting at 10 days old and again at weaning. The recommended dosage is 1 cc per 10 pounds of body weight for 2 - 5 days. It is important to shake the bottle well before administering. Toltrazuril is a safe and effective way to combat coccidiosis in puppies.