Menthol is a covalent organic compound made synthetically or obtained from peppermint or other mint oils. Forming clear or white waxy, crystalline substance, menthol is typically solid at room temperature. (-)-Menthol is the naturally-occurring and main form of menthol, and is assigned the (1R,2S,5R) configuration. Menthol mediates anesthetic properties and anti-irritating properties locally, thus it is widely used to relieve minor throat irritations.
Used to treat occasional minor irritation, pain, sore mouth, and sore throat as well as cough associated with a cold or inhaled irritants.
Lund University, Lund, Sweden
Taipei Veterans General Hospital, Taipei, Taiwan
NPO-13 Trial Site 12, Kurume, Fukuoka, Japan
NPO-13 Trial Site 1, Shimotsuke, Tochigi, Japan
NPO-13 Trial Site 2, Maebashi, Gunma, Japan
SMI, Aalborg, Denmark
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