MITRAL INSUFFICIENCY IN THE HORSE. I4I 



rendering the heart equal to its increased task. DigitaUs is of service, 

 but given before the proper time — that is to say, when the mitral 

 lesion is still compensated — -digitalis is often injurious; it increases the 

 work of the heart without purpose, fatigues the muscular tissue, and 

 may finally bring about degenerative changes. Under certain circum- 

 stances, bromide and iodide of potassium or sodium may be given to 

 combat cardiac asthma and sclerotic changes — ^purgatives and diuretics 

 are indicated in oedema and drops}-. 



