352 VEGETABLE DBUG8 



In addition to these, the following exist in minute quan- 

 tity, but some are merely " pharmaceutical curiosities ": — 



Protopine. Organic Acids, 



Cryptopiae. Meoonic Acid. 



Oxynarcotine. Lactic Acid. 



Hydronarcotine. Pectin. 



Laudanosme. '^^^ S"- P^"^ ««'»*• 



Laudaine. ^, 



Phoeadine. t f^. 



Codamine. f v , ^- 'n-, 



Meconodine. A Volatile Oil. 



r, ■ Odorous Bodies, 



Gnoscopine. „ 



T 0.1 • Caoutchouc. 



Lanthopine. . ■ „ -.^ 



Water. 15.-25. percent. Ammonium Salts. 



Neutral Bodies. Calcmm Salts. 



Meconln. Magnesium Salts. 



Meconoisin, 



Impurities. — Starch, molasses, leaves, fruit, stones and 

 water. 



Incompatibility. — Solutions of lead acetate and sub- 

 acetate, and of copper and arsenic salts, precipitate mecon- 

 ates, sulphates and coloring matters, but the opium remains 

 physiologically active. Ferric chloride produces a deep red 

 color with opium, by its union with meconio acid. Tannin 

 compounds precipitate codeine tannate. Alkalies, their car- 

 bonates and ammonia precipitate morpiiine and narcotine. 



Dose.—K., 3 i.-ii. (4.-8.) ; C, 3 ii.-iv. (8.-15.) ; Sh., gr.x.- 

 XXX. (.6-2.); Sw., gr.v.-xx. (.3-1.3); D., gr.ss.-iii. (.03-.2). 



Opii Pulvis. Powdered Opium. (U. S. P.) 



Opium dried at a temperature not exceding 85° 0. 

 (185° F.), and reduced to a fine powder. Powdered opium, 

 for pharmaceutical or medicinal purposes, when assayed 

 should yield not less than twelve (12) nor more than twelve 

 and a half (12.5) per cent, of crystallized morphine. Any 

 powdered opium of a higher percentage may be brought 

 within these limits by admixture with powdered opium of a 

 lower percentage in proper proportions. Only those are 

 mentioned here which are applicable to veterinary practice. 



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