334 VEGETABLE DRUGS 



Powdered opium, 4 ; benzoic acid, 4; camphor, 4 ; oil of anise, 4; 

 glycerin, 40; diluted alcohol to make 1000. Made by maceration and 

 filtration. (U. S. P.) 



Dose.— D., 3 i.-iv. (4.-15.). 



Opium Deodoratum. Deodorized Opium. (U. S. P.) 



Synonym. — Opium denarcotizatum. 



Powdered opium (containing 13-15 per cent, of morphine), 100 ; 

 ether, 1400 ; sugar of milk to make 100 Made by repeated maceration 

 and agitation with ether ; evaporation and trituration with sugar of 

 milk. The ether removes narcotic and odorous principles, which cause 

 nausea and disagreeable after-effects in opium. 



Dose. — Same as powdered opium. 



Tinctura Opii Deodorata. Tmcture of Deodorized Opium. (U. S. P.) 



Powdered opinm, 100 ; ether, 200 ; alcohol, 200 ; water to make 

 1000. Made by trituration and maceration with precipitated calcium 

 phosphate, 50 ; percolation and evaporation. 



Dose. — Same as tincture of opium, but less nauseating. 



Extractum Opii Liquidum. (B. P.) 

 (Gr. 22 extract of opium to § i.) 

 Dose. — Same as laudanmn. 



Vinuvi Opii. (U. S. & B. P.) 

 i)ose.— Same as laudanum. 



MoRPHiNA. Morphine. C^ H^g N O, + Hj O. 



(U. S. & B. P.) 



Derivation. — Au alkaloid obtained from opium. 



1. Macerate opium in cold water, forming a solution of 

 morphine meconate. 2. Add calcium chloride to precipitate 

 calcium meconate and resins. 3. Evaporate solution remain- 

 ing, which contains morphine hydiochlorate, till it crystal- 

 lizes; press in flannel to remove narcotine and coloring 

 matter ; redissolve ; filter ; evaporate and crystallize repeat- 

 edly. 4. Decolorize by digestion with charcoal. 5. Preci- 

 pitate with ammonia and wash, when pure morphine is 

 separated from codeine. 



Properties. — Colorless or white, shining prismatic crys- 

 tals, or fine needles, or crystalline powder; odorless and 



