OLEUM MENTH.E VIRIDIS 



373 



those of the peppermint are short; odor and taste mint-like, but less 



cooling, .quite characteristic. 



Powder. Microscopical elements of: See Part iv, Chap. I, B. 

 CONSTITUENTS. Volatile oil containing carvone, Ci Hi 4 O, limonine, etc. 

 ACTION AND USES. Carminative; an antispasmodic of milder property 



than peppermint, often preferred in infantile cases. Dose: 15 to 60 



gr. (i to 4 Gm.), in infusion, employed in Spiritus Menthae Viridis. 

 OFFICIAL PREPARATION. Spiritus Menthse Piperitae. 



FIG. 215. Mentha viridis Flowering branch. 



474 a. OLEUM MENTHLE VIRIDIS 



A volatile oil distilled from the flowering plant of Mentha Splcata 

 Linn (Mentha Viridis Linn6) and yielding when assayed by the U.S.P. 

 process not less than 40 per cent, by volume of carvone. It is a colorless, 

 yellow or greenish-yellow liquid having characteristic odor and taste of 

 spearmint. 



Michigan is the chief producer of this oil in U.S. 



OFFICIAL PREPARATIONS. 



Aqua Menthae Viridis (0.2 per cent.). 



Spiritus Menthae Viridis (10 per cent.), Dose: 30 tpj (2.0 mils). 



