ae : 
with seeds of other varieties of the plant, of which ies are : 
twenty-eight, containing strophanthin in varying proportions” 
or not at all. One sample has been found to contain 
ninety times more of the active principle than another. We 
use only the seeds of Sirophanthus Kombe, of prime quality. 
But as the amount of strophanthin even in the best crude 
drug varies considerably, it is necessary to. standardize the 
finished preparations, and to do so physiologically, inasmuch es 
as no chemical procedure will answer. Our products are 
tested on frogs, i in much the same manner as digitalis. We. 
= recommend to the P escriber our special preparation of the 
me; in this ‘preparation the non-essential © oe 
portion of strophanthin in the seed is preserved. _ ‘The 
activity of this product is just one-half that of the official 
tincture when the latter is prepared from a prime quality of 
drug. 
*VERATRUM. 
Also known as American Hellebore. 
The dried rhizome and roots of Veratrum vee (Aiton) 
are used. 
Contains several alkaloids, most important of which are 
protoveratrine and jervine. 
Cardiac depressant; diaphoretic; diuretic; febrifuge. 
Employed in eclampsia, acute fevers, and mania. = 
s STANDARDIZED. Propucts: = 
I a ead to a minimum, while the normal pro- : 
