Sona AfterBiotic (10). Your digestive tract is naturally home to a variety of friendly bacteria. These bacteria help to keep your body healthy by neutralising some of the toxic by products of digestion as well as preventing harmful bacteria and yeasts from setting up home within the intestines; often simply by not allowing them the space they need on the intestinal wall. In addition, they synthesize Vitamins B and K, help stimulate the digestive process, aid the absorption of nutrients and maintain the body’s natural defenses.. 7 day course for use after antibiotics. High potency friendly bacteria. 21 billion probiotics per capsule. Lacto. Acidophilus HA-22 and Bifido. Lactis LAFTI B94