A special procedure of coating a capsule containing peppermint oil, known as enteric coating, prevents the oil from being released in the stomach. Without the special coating, peppermint oil tends to produce heartburn.
Peppermint oil has been shown to inhibit intestinal spasm and relieve gas.
Dosage is 1-2 capsules 30-60 minutes before a meal, not more than 6 capsules per day.
Enteric-coated Peppermint oil has been used in treating the irritable bowel syndrome in Europe for many years. In one double-blind cross-over study, it was shown to significantly reduce the abdominal symptoms.