ChEBI: (-)-menthol is a p-menthan-3-ol which has (1R,2S,5R)-stereochemistry. It is the most common naturally occurring enantiomer. It has a role as an antipruritic drug, an antitussive and an antispasmodic drug. It is an enantiomer of a (+)-menthol.NCI Thesaurus (NCIt): Levomenthol is a levo isomer of menthol, an organic compound made synthetically or obtained from peppermint or mint oils with flavoring and local anesthetic properties. When added to pharmaceuticals and foods, menthol functions as a fortifier for peppermint flavors. It also has a counterirritant effect on skin and mucous membranes, thereby producing a local analgesic or anesthetic effect.