336 VEGETABLE DRUGS 



Morphine Sulphas. Morphine Sulphate. 

 (C,,Hi9N O3), H,S O, + 5 H,0. (U. S. & B. P.) 



Derivation. — Morphine is stirred into boiling distilled 

 water; diluted sulphuric acid . is added until neutralization 

 is attained, and the sulphate* crystallizes out on cooling. 



Properties. — White, feathery, acicular crystals of a silky 

 lustre; odorless and having a bitter taste. Permanent in 

 the air. Soluble in 21 parts of water, and in 702 parts of 

 alcohol. 



Dose. — Same as hydrochlorate. 125 parts of morphine 

 sulphate correspond to 100 parts of the pure alkaloid. 



The official salts of morphine may be used interchange- 

 ably. The acetate is more soluble, but less stable, than the 

 sulphate, which is sufficiently soluble for practical purposes, 

 and is in more common use. 



Liquor Morphine Hydrochloratis. (B. P.) 



(Gr.4J-5i.) 



Dose.—B.., 3 vi.- 5 ii. (24-60.); D., %x.- 3 i. (.6-4.). 



Liquor Morphine Acetatis. (B. P.) 

 Same strength and dose as above. 



Injeotio Morphin;E Hypodermica. (B. p.) 

 (Gr.i morphine acetate in TTt^.) 



Dose.— H., 111^xxx.-xl. (2.-2.6); D., 11ti.-iii. (.06-.2). 



SupposiTORiA Morphine. (B. P.) 

 (Gr.J morphine.) 



Dose. — Dog, 1 per rectum. 



CoDEiNA. Codeine. G,sH,,N03 -f- H,0. (U. S. & B. P.) 



Derivation. — An alkaloid obtained from opium by evapo- 

 ration of the ammoni-ic.il liquid, after the precipitation of 



