Hyoscyamus (hi-o-si'a-mus). 1

Henbane; U. S. Ph., the leaves of H. niger. List of poisons and their antidotes, see in appendix, page 940. extractum hyoscyami. An extract of H. containing 0.3 per cent, of alkaloids. extractum hyoscyami fluidum. A fluid extract of the leaves of H. niger [U. S. Ph.]. extractum hyoscyami viride. An extract prepared from the bruised fresh leaves and tops of H. hyoscyami folia. The leaves, flowers, branches of H. niger [Br. Ph.]. H. niger. A coarse, erect herb. It grows wild in waste places through the United States and is widely distributed elsewhere. Its active properties are dependent on two alkaloids, hyoscyamin and scopolamin. infusum hyoscyami oleosum. Syn.: oleum hyoscyami. A preparation made by macerating or digesting for some hours fresh or freshly dried leaves of H., generally with alcohol, adding olive oil, then freeing from the spirit or from all the moisture and filtering. oleum hyoscyami. See infusum hyoscyami oleosum. succus hyoscyami. A preparation made by crushing in a mortar the fresh leaves, flower tops, and young branches of H. niger, expre ing the juice, adding alcohol and, after a week, filtering [Br. Ph. 1898]. tinctura hyoscyami. A 10 per cent, tincture of h. [U. S. Ph., Br. Ph.]. [Gr., ys, a pig, + kyamos, a bean.]