Heather's tummy tamers peppermint oil capsules for IBIS are an enteric-coated blend of peppermint, fennel, and ginger oils that soothe and relax the digestive tract. Peppermint, as part of the diet, helps relieve abdominal pain, diarrhea, and urgency from IBIS. Menthol and methyl salicylate, the main active ingredients of peppermint, have calming effects on the stomach and intestinal tract. Although peppermint is such a powerful smooth muscle relaxant that it can trigger gird (gastro esophageal reflux disease) or heartburn in people who are susceptible, because heather's tummy tamers peppermint oil caps are enteric coated they do not dissolve in the stomach. Instead, they pass through the digestive tract intact until they reach the intestines. For this reason, heather's tummy tamers peppermint oil caps are often very helpful for people with both reflux and IBIS who cannot tolerate peppermint in other forms (such as teas or foods). Fennel, as part of the diet, helps regulate contractions of the small intestine and aids gas expulsion. Fennel also relaxes the gut, which can relieve spasms of the gig tract. As a result, fennel assists in the dietary management of IBIS gas, bloating, and abdominal pain. Fennel is exceptionally beneficial for bloating and gas. Ginger contains powerful digestive enzymes, and is helpful for a wide variety of gastrointestinal ailments. Heather's tummy tamers peppermint oil capsules are considered a medical food for the dietary management of irritable bowel syndrome symptoms, and they are specially formulated to address global IBIS symptoms through the synergistic effects of peppermint, fennel, and ginger oils. This product is a medical food for the dietary management of irritable bowel syndrome (IBIS) symptoms and is intended to be used under a physician's supervision. Heather's tummy tamers peppermint oil caps contain no, sugar, salt, yeast, wheat, gluten, corn, milk or preservatives.