Piper methys'ticum, Kava, Methysticum, Kava Kava, N.F. -- The dried rhizome and roots with not more than 1 p.c. of foreign organic matter; Sandwich Islands; cultivated. Tall, soft-wooded herb. Rhizome, irregular knotty crown, 12 Cm. (5') thick, from which radiate many tough roots with ends separating fibro-vascular bundles, sometimes cut into angular pieces; crown soft, light, spongy, granular, starchy, dark brown -- crown, lighter where scraped, internally white; odor faint, characteristic; taste aromatic, pungent, bitter -- more or less anesthesia. Powder, whitish -- starch grains, yellow resin and oil cells, sclerenchymatous fibers, tracheae with markings, parenchyma cells (stem); solvent: diluted alcohol; contains resins (alpha-, beta-) 2 p.c., yangonin, kavaine, methysticin (kavahin -- resembles piperine), volatile oil, starch 50 p.c., ash 8 p.c. Local anesthetic -- lasts several days, but too irritating for general use; on mucous membranes -- tingling sensation then anesthesia; natives prepare a beverage kava, by fermenting infusion which produces drowsiness, mutterings, weakness of limbs, without impairing intelligence. Diuretic; cystitis, vaginitis, acute and chronic diarrhea, leucorrhea. Dose, gr. 15-30 (1-2 Gm.); 1. Fluidextractum Kavae (60 p.c. alcohol).