DRUGS ACTING ON THE RESPIRATORY ORGANS 



49 



action on the bronchial mucous membrane during their 

 elimination. 



Expectorants. 



(1) INCREASING SECRETION. 



Depressing the heart and lower- 

 ing vascular tension, "De- 

 pressing expectorants." 



Stimulating the heart and in- 

 creasing vascular tension. 

 "Stimulating expectorants." 



Apomorphine 



Potassium iodide 



Ipecac 



Antimony and potassium tartrate 



Pilocarpine 



Ammonium chloride 



Squill 



Camphor 



Balsams 



Sulphur 



Tar 



Turpentine 



Terpin hydrate 



Terebene 



Volatile oils 



(2) DIMINISHING SECRETION. 



Belladonna 



Hyoscyamus 



Stramonium 



Acids 



Opium 



(3) ALTERING THE NUTRITION OP BRONCHIAL MUCOUS MEMBRANE. 



Potassium iodide Cod liver oil 



Ammonium chloride Sulphur 



(4) EXERTING AN ANTISEPTIC ACTION. 



Turpentine Balsam of Peru 



Terebene Balsam of Tolu 



Terpin hydrate Cubebs 



Tar Copaiba. 

 Ammoniacum 



Z7ses. —Expectorants are chiefly prescribed in bronchitis. 

 In the early or dry stage drugs increasing secretion and at 

 the same time depressing the circulation are often employed 

 in sthenic cases. These drugs possess less value in the 

 treatment of the horse, on account of comparative insuscep- 

 tibility to them, than in the case of dogs. 



