244 INOEGANIC AGENTS 



a purple vapor. With starch, iodine forms an insoluble 

 blue compound. 



Dose.— H. & C, 3ss.-i. (2.-4.) ; Sh. & Sw., gr.s.-ss. 

 :(.6-1.3). 



Not often used in solid state. 



PEEPAKATIONS. 



Liquor lodi Compositus. Compound Solution of Iodine. 

 (Lugol's Solution.). (U. S. P.) 



Iodine, 5; potassium iodide, 10; water to make 100. (1-20). 

 Dose.— H. & C, 3 ii-iv. (8.-15.) D., TTLii-x. (.12-.6). Should be 

 given in one quart of water to the larger animals. 



Tinctura lodi. (U.S.P.) 



Iodine, 70; alcohol to make 1,000. 



Dose.— a. & C, 3 ii.-iv. (8.-15.) ; D. Ttl.i.-v. (.06-.3)'. 



Tincture lodi. (B. P.) 

 i)ose. — Same as U. S. P. tincture. 



Unguentum lodi. 1-25. (U. S. & B. P.)]^ 

 Too weak for most veterinary purposes. 



Action External. — Iodine acts as a slow, moderate and 

 prolonged irritant upon the skin and mucous membranes. 

 The yellow stain produced by iodine may be removed by am- 

 monia water, alkalies and sodium hyposulphite. A small 

 amount of iodine is absorbed through the unbroken skin, and 

 it is thought to have a special resolvent and alterative action 

 over and above that of other counter irritants. Whether this 

 be true or not, its easy mode of application makes it a very 

 convenient irritant for local uses. 



Action Internal. — Iodine produces gastro-intestinal irri- 

 tation and inflammation in large doses ; and in toxic quanti- 

 ties induces colic, vomiting in animals capable of the act, 

 and purging and salivation. The pulse becomes rapid and 

 ■weak; there is often suppression of urine, and occasionally 

 nephritis. Widespread fatty degeneration has been found 

 after fatal poisoning in the lower animals. If there is much 



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