THE EQUINE HOSPITAL FORMULARY. 75 



compound tincture of iodine may be prescribed, or iodide 

 of potassium added to the drinking-water in two-drachm 

 doses twice daily, also vegetable tonics or the sul])hate or 

 perchloride of iron, and perhaps Fowler's solution. 



Ball. 



Iodide of potassium, 3i. 

 Sulphate of iron, 5i.ss. 

 Gentian, 7)iv. 

 Treacle, q. s. 

 This ball may be given twice daily. 



Diabetes Mellitus. 



This malady is rare in the horse. It is probably due to 

 vaso-motor disorder producing dilatation of the hepatic 

 arteries, and consequently augmented activity of the hepatic 

 cells, leading to an increased amount of transformation of 

 glycogen into glucose, the surplus of which is excreted by 

 the kidneys. 



In this disease, to the symptoms of diabetes insipidus a 

 new and most important factor is added, viz., that the 

 urine has a fragrant smell, a high specific gravity, and 

 contains glucose. 



The diet should be nutritious and, so far as possible, 

 devoid of purely saccharine or starchy matter. 



Opium or codeia may be given, and preferably the latter, 

 and mineral acids, iron salts, and astringents such as gallic 

 acid may be useful. Of iron salts, probably the best is the 

 citrate of iron and quinine. 



Draught. 



Diluted hydrochloric acid, f. 3ii- 

 Quinetum, 5i- 



