ORAL USE ONLY - SHAKE WELL Pets, under 50 lbs., give 3 drops orally (50 to 500 lbs. - 6 drops, over 500 lbs. - 1/2 teaspoon) as needed or as directed by a healthcare professional. Place in mouth or purified water. Warning: For severe parasitic infestation or prolonged symptoms, consult a licensed healthcare professional.