110 LILIACE^E 



form of a colored syrupy residue upon evaporation of the solvent, 

 only a small portion crystallizing. 



Jervine is a depressant to the respiratory center, to the vaso- 

 motor center and to the heart muscles. 



Rubijervine stimulates the cardie-inhibitory centers, but appears 

 to depress the respiratory center. 



There is no physiological relationship between protoveratrine 

 and veratrine. The latter is the active principle of ASAGR^EA 

 officinalis, (61). 



FIG. 32. Veratrum viride Branch and rhizome. 



ACTION AND USES. The action of veratrum viride closely resembles 

 that of aconite, being a powerful cardiac depressant and spinal 

 paralyzant, but in addition it has a strong emetocathartic action, and 

 consequently overdoses are less likely to prove fatal; death occurs by 

 paralysis of the heart. Dose: i to 5 gr. (0.065 to 0.3 Gm.). 



OFFICIAL PREPARATIONS. 



Tinctura Veratri Viridis (10 per cent.), Dose: i to 5 nj> (0.065 to 0.3 mil). 

 Fluidextractum Veratri Viridis, i to 5 TIE (0.065 to 0.3 mil). 



