IODINE 189 



For resolvent purposes: 



lodi 151 



Potassii iodidi 18 



Alcoholis 100 



M. 



S. Apply externally. 



Iodine is employed in aqueous and alcoholic solution^ or in ointment, 

 as above, either painted upon or rubbed into the skin over enlarged glands, 

 rheumatic swellings about the joints or upon the chest in chronic pleur- 

 itis. It is also of value in strains, bruises, periosteal inflammation and 

 muscular rheumatism. In the horse, severe sprains and inflammation of 

 joints, bones, and periosteum, are treated more satisfactorily by blistering 

 agents. Iodine is a valuable disinfectant and parasiticide in alopecia 

 areata, and particularly in ringworm and favus in dogs, when the tinc- 

 ture is applied locally. Iodine is applied externally, in the form of the 

 tincture, on patches of chronic mange and eczema. 



Iodine is often recommended for erysipelas, but is inferior to phenol 

 for this purpose. In obstetric work the tincture of iodine should be 

 applied to the cord after it has been ligated and trimmed, and reapplied 

 every few days, to prevent septic infection with metastases in the joints. 

 Lugol's solution, diluted with water to make 0.25% strength, is useful as 

 a uterine douche in metritis of cows. Improvement in periodic ophthal- 

 mia in horses has followed inj ections of one to three mils each of Lugol's 

 solution ariid glycerine into the fat over the eyeball at 10-day intervals. 

 Iodine is injected into joints, synovial sacs, abscesses, and cavities of the 

 body to promote healing through its antiseptic and irritant action; to 

 cause adhesive inflammation, and in this manner to close cavities and to 

 prevent the accumulation of fluids in them. The official tincture (3i-ii.) 

 is commonly used for injections. 



The tincture of iodine may be injected undiluted directly into the 

 substance of enlarged glands, in amounts varying from 1 5 to 30 drops, to 

 assist their absorption. If the tincture is injected into the subcutaneous 

 tissue, abscess may ensue. In goitre in dogs, calves and lambs, injections 

 of tincture of iodine (lUx.) may be made every other day for 10 to 20 

 times— if painting on the tincture externally and potassium iodide or 

 dessicated thyroid glands (gr.i in capsules thrice daily) internally are 

 unsuccessful. Ozena may be treated to advantage by irrigation with a 

 solution containing one dram of the tincture of iodine to the pint of nor- 

 mal salt solution. In inflammation of the upper air passages, iodine is 

 sometimes beneficial as a stimulant and antiseptic inhalation, which is 

 produced by adding one-half a dram of iodine to the pint of boiling water. 



Uses Internal. — Iodine is thought to act more satisfactorily than 

 potassium iodide in the treatment of diabetes insipidus or polyuria of the 

 horse, in which it often appears to be a specific. One ounce twice daily, 

 intratracheally, of Dieckerhoif 's solution (iodine, 1 ; potassium iodide, 5 ; 

 water, IQO) has given good results in purpura of horses. 



Administration. — Iodine may be combined with gentian and iron in 

 the form of a ball, as recommended by Finlay Dun, or better, given as 

 Lugol's solution, which is less irritating and more active. 



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