Chew l tablet slightly and allow to dissolve in the mouth. Adults take one every 2 to 4 hours until symptoms improve. Then take only as needed to maintain your well-being. Children ages 2 to 12 years, use one-half the adult dosage. For children under the age of 2 years, consult your health care professional. For Best Results: Keep mouth free of food and strong tastes (such as toothpaste, mouthwash and tobacco) for 15 minutes before and after taking this medicine. these substances may interfere with mucosal absorption.