USES OF ZINO SALTS 185 



order to form insoluble compounds. • Vomiting will relieve 

 carnivora ; otherwise the stomach pump must be resorted to. 

 Zinc salts apparently produce no remote effects upon 

 the body when ingested. Given intravenously (double salts) 

 to mammals, zinc causes vomiting, diarrhea, muscular weak- 

 ness and paralysis. It is eliminated chiefly by the ali- 

 mentary tract and slightly in the bile and urine. In 

 therapeutic doses the zinc salts are astringent, diminishing' 

 secretion in the digestive tract. 



USES OP ZINC SALTS. 



External. — Zinc sulphate is in common use as an astrin- 

 gent collyrium for subacute conjunctivitis (gr.ss.-ii. to Ji.). 

 It is also employed in the treatment of canker of the ear 

 in dogs (gr.x. to § i.), or as " white lotion " (see Plumbi 

 Acetas), in this affection. 



The salt is likewise serviceable as a stimulant and 

 astringent solution (gr.ii.-v. to 5 i.) in moist eczema; ulcers, 

 atonic inflammations of mucous membranes, balanitis and 

 urethritis in dogs, and leucorrhoea. 



Zinc carbonate is a much milder astringent than zinc 

 sulphate or acetate. The impure carbonate (calamine) is an 

 ingredient of the popular astringent and antiseptic, " pink 

 ointment" of veterinary medicine used for the cure of 

 " scratches " in horses. 



^ Zinci oarbonatis (impure) | ii. 



Alumenis I iss. 



Caioii oarb. prsecip § x. 



Creasoti 



Cerse flavi aa § iss. 



Adipis. ,1 XV. 



M. 



8. External use. 



The lard and wax are first melted together and then the 

 other ingredients are stirred in. Calamine in the form of a 

 lotion is a more cleanly application for house dogs and pets 

 than in ointment or paste. The following is useful in 

 dermatitis, erythema and moist eczema attended with itch- 

 ing. The carbolic acid may be omitted when the lotion is 



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