414. VEGETABLE DRUGS 



For Horses. 



Hydraryri chloridi mitis 5i. 



Olei tiglii TIlxv. 



Pulveris aloes 3v. 



M. et fiat bolus No. i. 

 S. Give at once. 



Blister for Cattle. 



Olei tiglii 5i- 



Olei terebinthinse S'i- 



Pctrolati giii. 



M. 



S. External use with friction. 



ScAMMONi^ Radix. Scammony Root. (U. S. P.) 



Synonym. — Scammonee, Fr. ; scammonium, G. 



The dried root of Convolvulus Scammonia Linne (Fam. Convolvulacea;), 

 yielding not less than 8 per cent, of total resins. 



Description. — Cylindrical, tapering, from 10 to 25 cm. in length, and from 1 

 to 4.5 cm. in thickness ; externally grayish to reddish brown. The powder is light, 

 grayish brown. 



Constituents. — 1, a resin (80-95 per cent.); 2, gum; 3, starch. 



Dose.— D., 3i-ii, (4-8); Cats, 5ss-i, (2-4); Sw., ."ii-iv (8-15). 



PREPARATION. 



liesina Scammonii. Resin of Scammony. (U. S. P.) 

 Scammonife Resina. (B. P.) 



Derivation. — Made by maceration and percolation with alcohol, distillation to 

 remove the excess of alcohol, and precipitation in water. 



Properties. — Yellowish to brown masses or fragments, breaking with a resin- 

 ous glassy fracture; translucent at the edges; or a yellowish-gray to yellowish- 

 brown powder, having a slight, peculiar odor, and a somewhat acrid taste. Solu- 

 ble in alcohol, ether, and insoluble in fixed and volatile oils. 



Constituents. — Mainly scammonin (CsgHijoOjj), identical with jalapin. 



Dose. — One-half that of scammony. 



Jalapa. Jalap. (U. S. & B. P.) 



Synonym. — Tubera jalapae, P. G. ; jalap tubfreux, Fr. ; jalape, jalapenknol- 

 len, G. 



The dried tuberous root of Exogonium Pm-ga (Wenderoth) Bentham (Fam. 

 Gonvolvulacew), yielding not less than 7 per cent, of total resins of jalap. 



Habitat. — Mexico. 



Description. — Fusiform, irregularly ovoid or pyriform, upper end more or 

 less rounded, lower end slightly tapering, the large roots often incised or cut 

 into pieces; from 4 to 15 cm. in length and from 12 to 60 mm. in diameter; 

 externally dark brown, longitudinally wrinkled or furrowed and with numerous 

 lenticels; odor slight but distinctive, smoky; taste somewhat sweet and acrid. 



The powder is light brown. 



Constituents. — 1, a hard resin (7-22%), chiefly the glucoside jalapurgin 

 (CffiHiooOsj) ; 2, a soft resin. 



Dose.—D., 3i-ii, (4-8); Cats, 3ss-i, (2-4); Sw., .'iii-iv, (8-15). 



PREPARATIONS. 



Pulvis .Jalapw Compositu^. (U. S. & B. P.) 

 Jalap, 35; potassium bitartrate, 65. Dose. — D., gr.xv-lx. 



Resina Jalapw. Resin of Jalap. (U. S. & B. P.) 

 Derivation. — Made by maceration and percolation with alcohol, partial distil- 

 lation; precipitation with water; washing and drying. 



Properties. — Yellow to brown masses or fragments, breaking with a resinous, 

 glossy fracture, translucent at the edges, or a yellowish-gray or yellowish-brown 

 powder, having a slight, peculiar odor, and a somewhat acrid taste. Permanent 



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