“…Besides its uses in traditional medicine, A. calamus has been used for digestive problems such as gas, bloating, colic, and poor digestive function; because of its rich ethnobotanical history, the herb is also used in the Ayurveda and Uniani systems of medicine. A number of bioactive constituents, viz., 2-allyl-5-ethoxy-4-methoxyphenol, 4-terpineol, lysidine, epieudesmin, spathulenol, furylethyl ketone, borneol, nonanoic acid, 2,2,5,5-tetramethyl-3-hexanol, galgravin, bornyl acetate, retusin, (9 E ,12 E ,15 E )-9,12,15-octadecatrien-1-ol, geranylacetate, butyl butanoate, sakuranin, camphor, acetic acid, isoelemicin, acetaphenone, α-ursolic acid, dehydroabietic acid, methyl ether, isoeugenol, apigenin 4,7-dimethylether, linalool, dehydrodiisoeugenol, elemicin and linolenic acid, 1 beta,7 alpha( H )-cadinane-4 alpha,6 alpha,10 alpha-triol (1), 1 alpha,5 beta-guaiane-10 alpha- O -ethyl-4 beta,6 beta-diol (2), and 6 beta,7 beta( H )-cadinane-1 alpha,4 alpha,10 alpha-triol (3) have been reported in A. calamus [ 25 , 26 , 27 ]. The phenyl propanoids, sesquiterpenes, monoterpenes, xanthone glycosides, flavones, lignans, and steroids from Acorus calamus have been reported to possess various pharmacological activities such as insecticidal, larvicidal, antibacterial, mutagenic, cytotoxic, hepatoprotective, anticonvulsant, neuroleptic, smooth muscle relaxant, and smooth muscle stimulant activity [ 28 ].…”