412 SALTS OF THE HEAVY METALS 



Therapeutics. 



1. Emetic. It is a prompt and powerful emetic but should not 

 be repeated if results do not follow the first dose. It is particularly 

 serviceable in phosphorus poisoning as it forms an insoluble coat- 

 ing of copper upon the phosphorus. 



2. Caustic. Particularly for ulcerative stomatitis, conjunctivitis, 

 etc. ; fouls of sheep and cow, or fistulous tracts. It may be em- 

 ployed as the crystals or made up into sticks for this purpose or may 

 be used in fistulous tracts and fouls in strong aqueous solution. 

 Solutions of 5 — 15 grains to the ounce of water are useful in con- 

 junctivitis, vaginitis, and urethritis.. 



3. Vermifuge. It has been recommended as a vermifuge for 

 sheep and horses. For horses it is usually combined with iron sul- 

 phate and for sheep given in solution as follows: One pound 

 (avoir) of copper sulphate is to be dissolved in 9% gallons of 

 water. Doses, ages 3 months, % oz. ; 6 mo. 1-J4 oz. ; 12 mo. 2/4 

 oz. ; 18 mo. 3 oz. ; 24 mo. 3% oz. 



* Copper Oleate. This is made by precipitating a solution of 

 copper sulphate with a solution of castile soap. It occurs as light 

 or dark green, greasy masses. It has been recommended in 20 per 

 cent, ointment for mange of cats and dogs, but the results from its 

 use are not encouraging. 



ZINCUM — ZINC 



The element is official in the forms of irregular granulated pieces, 

 or thin sheets, or moulded into thin pencils or in fine powder. 

 The metal itself is not used in medicine. The following prepara- 

 tions are official: acetate, precipitated carbonate, chloride, oxide, 

 sulphate; phenosulphonate, stearate, and valerate. 



ZINCI SULPHAS — ZINC SULPHATE 



Synonym. White Vitriol 



Properties. Colorless transparent rhombic crystals, odorless and 

 of an astringent metallic taste. Freely soluble in water and glycerin 

 but insoluble in alcohol. 



Doses. Astringent. H. 5 ss — ij ; 2.^8. D. gr. % — 3 ; 



0.03—0.2. 

 Emetic. Dog gr. x— xxx; 0.6 — 2. 

 Emetic. Swine gr. iv — xvj ; 0.5 — 1.0. 



Action. Zinc sulphate in solution is caustic, irritant or astrin- 

 gent according to concentration. Large doses cause vomiting in a 

 similar manner to the copper salt. Toxic doses produce severe gas- 



* Unofficial. 



