Peppermint oil (Oleum Menthae piperatae) - it is more potent than peppermint leaf (see. Mint leaf), especially for strains resistant to antibiotics by inhalation. In the case of small children it should be used with extreme caution, as it can cause cyanosis, respiratory arrest and heart rate. It is used orally and externally (rinse the mouth and throat), it is used in the cosmetic industry (including toothpastes).
See. detailed description - mint leaves
See. and - peppermint