2l8 SYNOPSIS OF VETERINARY 



CATHARTICS. 



RHAMNUS PURSHIANA. 



Commonly known as Cascara Sagrada. 

 Synonyms. — Chittem Bark, Sacred Bark, California Buck- 

 thorn. 



EXTRACTUM RHAMNI PURSHIANAE IXUIDUM— Fluid Extract 



of Rhamnus Purshiana. 



Dose. — Dogs, Yi to 2 drs. as a cathartic, 5 to 20 minins 3 

 times daily as a stomachic and tonic laxative. 



Dose of powdered cascara the same. 



f%uid. cascara sagrada aromaticum, is a pleasanter form 

 than the official Fid. Ext., dose twice as much. 



Extractum p.hamni purshianae (not official). 



Dose. — Dogs, 1 to 15 grs. 



Action and Uses. — Used as a non-irritant tonic laxative or 

 cathartic ; small doses are stomachic ; to overcome chronic con- 

 stipation, give small repeated doses; very useful in dog practice. 



OLEUM R1CINI— CASTOR-OIL. 



A fixed oil expressed from seeds of the common castor, the 

 purer the oil, the less purgative ; the dark colored oil is the most 

 active. 



Actions and Uses. — A mild, certain and efficient laxative; 

 in dogs, operates in from 1 to 4 hours, causing but little pain and 

 producing free evacuations ; the intestinal secretions are but 

 slightly increased, hence, the stools are not very liquid ; its pur- 

 gative principle enters the blood and the milk of the mother may 

 acquire purgative properties ; it is used wherever a gentle laxa- 

 tive is indicated. Is occasionally given to the mother for its 

 effects on the suckling. For puppies it should be given with 

 olive oil. 



Dose. — -Dogs, 1 dr. to 2 ozs. ; cats }4 dr. to J^ oz. ; pigs, 1 

 to 4 ozs. ; sheep, 2 to 4 ozs. ; horses, 1 to 2 pints ; is often used 

 in equal parts with linseed-oil for horses, say 8 to 16 ozs., of 

 each. 



