NOW Kids™ Probiotics are Strain-Verified using their unique Ribo-printer® DNA testing. NOW scientists utilize this powerful, cutting-edge tool to guarantee the identity, potency, and purity of the bacterial strains used in their probiotic products. In addition, we’ve included an added FOS (Fructo-oligosaccharide) pre-biotic to assist in the healthy growth of beneficial probiotic organisms.Recommended Dosage: For adults, adolescents, and children 3 and up.Dosage: Take 1 tablet 1 to 3 times daily. If you are on antibiotics, take at least 2 to 3 hours before or after. Tablet to be chewed or crushed; not to be swallowed whole. Store in refrigerator in a tightly closed container.Caution: Consult a health care practitioner prior to use if you have fever, vomiting, bloody diarrhea, or severe abdominal pain. If symptoms of digestive upset (e.g. diarrhea) occur, worsen, or persist beyond 3 days, discontinue use and consult a health care practitioner. Do not use this product if you have an immune-compromised condition (e.g. AIDS, lymphoma, patients undergoing long-term corticosteroid treatment).Warning: Xylitol is harmful to pets. Do not feed Xylitol to dogs or other pets. Seek veterinary care immediately if ingestion is suspected. Learn more about pet safety.