Probiotic G.I. provides 10 billion CFU per capsule of the beneficial bacteria Lactobacillus acidophilus, Lactobacillus salivarius, Lactobacillus casei, Bifidobacterium bifidum, Bifidobacterium lactis and Streptococcus thermophilus. Research indicates that these strains provide particular support for healthy immune balance within the G.I. tract. Do not use this product if you have an immune-compromised condition or are taking tetracycline. Consult a healthcare practitioner prior to use if you have fever, vomiting, bloody diarrhea or severe abdominal pain. Stop use and consult a healthcare practitioner if symptoms of digestive upset occur, worsen or persist beyond 3 days. Keep out of the reach of children. Store in a cool, dry place. Use only if safety seal is intact.