PREVENTION, SYMPTOMS AND TREATMENT 39 



In the dog, syrup of ipecac, Tf|,x-xx, may be given every three 

 hours in a teaspoonful of syrup of squill; or ammonium chloride 

 (D., gr. v; H., 3ii) dissolved in chloroform water (H., %\; D., 3i), 

 to increase secretion. 



When secretion is excessive in the dog, leading to dyspnea and 

 suffocation, it is well to give a tablespoonful of syrup of ipecac to 

 cause emesis. In the horse, inhalations containing T / 2 dram of 

 turpentine to the pint of water, are serviceable in thinning and 

 lessening secretion. With excessive or viscid secretion, terpin 

 hydrate (D., gr. ii) may be given in capsules and combined with 

 codeine (D., gr. }& to yH) if cough is annoying. Cough is also 

 allayed by chloral hydrate (D., gr. v) in solution, which is less ob- 

 jectionable than opium preparations. If cough is persistent and 

 the lungs do not clear, it is well to prescribe sodium iodide (H., §i, 

 very expensive; D., gr. x) in solution thrice daily. 



In the horse, drugs (expectorants) do not influence the bron- 

 chial secretions as much as is desirable and inhalations and external 

 application of hot, wet packs, frequently changed in severe cases, 

 are more useful. 



Tincture of belladonna (D., n\v-x; H., 3ss) and nux vomica 

 (D., tincture, TTL x-xx ; H., fluid extract, 3i) are also valuable agents 

 in excessive secretion and may be combined to advantage. 



Chronic Bronchitis. — This disease may occur in all animals, 

 following the acute form, but is also a frequent accompaniment of 

 chronic lung disorders (emphysema, asthma, chronic pneumonia, 

 pleuritic adhesions, tuberculosis) and of chronic heart and kidney 

 lesions. With emphysema and asthma it is one of the factors in 

 " broken wind " of horses. 



Symptoms. — Cough, with the presence of dry or moist rales in 

 the chest and difficult and hurried breathing, are the chief signs and 

 symptoms. 



Treatment. — Treatment depends upon the symptoms and cause. 

 In a general way many of the same measures are useful which were 



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