Steam distilled Essential Oil from dried rhizome of Acorus Calamus. Its use has been restricted by IFRA due to high percentage of Asarone in Indian Calamus Oil. A high concentrations (0.5%) of b-Asarone have been shown to be positive in Ames mutagenic test following activation. Recently to enhance memory it is being used in a drug called megamind plus Uses and Advance Studies: The oil of Calamus is used as an ingredient in flavors, particularly in liquors The oil is employed also in perfumery It is used as an insecticide in Ayurvedic System of Indian Medicines and also as an stimulant, emetic, nauseant, stomachic, aromatic, expectorant, carminative, antispasmodic, and nervine sedative Due to high Asarone percentage this oil is useful in mental ailment Due to its insecticidal activity it has been used in combination with Neem Oil, cedar wood oil as Room Sprayer against house hold insect