362 MANUAL OF EQUINE MEDICINE. 



After a day or two, tonics, such as gentian, quinine and 

 nux vomica, may be regularly given. 



In the chronic forms of lead poisoning, where this agent 

 has accumulated in the system, a moderate dose of some 

 purgative should be given in the first instance, and this 

 should be followed up by the administration of potassium 

 iodide. 



The iodide, after its absorption in the blood, combines 

 with the lead and forms iodide of lead, which, re-enter- 

 ing the circulation, is eliminated with the urine. 



The dose of iodide should be small at first, as when it 

 combines with the lead the phenomena of acute lead poi- 

 soning may come on, from the large amount of iodide of 

 lead formed and passed into the circulation. 



In some cases of valuable horses, if paralytic symptoms 

 remain, galvanism may be tried, as in man. 



In all cases of lead poisoning it is of first importance 

 that the animals be moved from ^the source whence this 

 agent is derived. 



ANTIMONY POISONING. 



Antimony is occasionally administered to the horse in the 

 form of tartar emetic, or as chloride or butter of antimony. 

 These salts are not nearly so frequently given as they once 

 were, and the practice, we believe, is now considerably on 

 the decrease. 



The symptoms are those of an irritant rather than of a 

 corrosive poison. 



There are frequent attempts at vomition, and in some 

 cases this is complete. 



In severe cases the pulse becomes weak and fluttering, 

 and almost or quite imperceptible. 



