216 MATERIA MEDIC A AND THERAPEUTICS. 



Characters. Colour pale yellow, odour disagreeable, taste 

 bitter, acrid. 



Composition. Oil of rue is a mixture of various volatile oils. 

 Dose. 2 to 6 min. 



ACTION AND USES. 



The action of rue is the same as that of savin ; but it is 

 seldom employed as an emmenagogue. See Sabince Cacumina, 

 page 351. 



Cusparise Cortex CUSPARI A BARK. ANGUSTURA 

 BARK. The bark of Galipea Cusparia. From tropical 

 South America. 



Characters. In straight pieces, more or less incurved at 

 the sides, from half a line to a line in thickness, pared away 

 at the edges ; epidermis mottled, brown, or yellowish-grey ; 

 inner surface yellowish-brown, flaky ; breaks with a short 

 fracture ; the taste is bitter and slightly aromatic. The cut 

 surface examined with a lens usually exhibits numerous white 

 points or minute lines. 



Impurity. The bark of Strychnos Nux vomica (" false 

 angustura bark "), which may be distinguished by its inner 

 surface giving a blood-red colour with nitric acid, whilst true 

 cusparia bark does not. Cusparia resembles Canella alba, but 

 is darker and has pared edges. 



Incompatibles. Mineral acids ; perchloride of iron, and 

 other metallic salts. 



Composition. Cusparia contains a neutral crystalline bitter 

 principle, cusparin or angusturin, a second bitter substance, an, 

 aromatic oil, but no tannin. 



Dose. 10 to 40 gr. 



Preparation. 

 Infusum Cusparise. 1 to 20. Dose, 1 to 2 fl.oz. 



ACTION AND USES. 



Cusparia belongs to the group of aromatic bitters, the 

 action and uses of which are fully discussed under Calumba 

 and Caryophyllum. Like other bitters, it has been credited with 

 antipyretic and antiperiodic properties, and in its native place 

 is used instead of cincbona for malarious diseases. 



Pilocarpi Folia (Not Officinal). The leaflets 



