Dietary Supplement. Natural Gastrointestinal Comfort*. Enteric-Coated. Targeted Release™. Clinical Potency. Doctor Developed. Peppermint Oil and Gastrointestinal Comfort For centuries peppermint has been traditionally used for gastrointestinal upset, cramps, gas, and nausea. Today, modern science focuses on the menthol-rich essential oil found in peppermint leaves that soothes occasional disruptions in the bowel. Clinically effective natural relief.*.