246 ANTISEPTIC, ASTRINGENT, AND TONIC 



canker, cracked heels, sinuses, fistulse, and in foot-rot in 

 sheep, and as a styptic for arresting haemorrhage from super- 

 ficial vessels. 



DOSES, etc. As a tonic and astringent, horses take 3i- to 

 3ij. ; cattle, 3i- to 3i v - 5 sheep, grs. xx. to grs. xxx. ; pigs, 

 grs. v. to grs. x. ; and dogs, gr. J to grs. ij. These doses, 

 repeated twice daily, are administered either in bolus or dis- 

 solved in some mucilaginous solution ; and as tonics are best 

 given along with food, or immediately after feeding. Unless 

 in very small doses, copper sulphate should not be given for 

 more than ten days, as it is apt to interfere with appetite, and 

 even cause nausea. As a prompt emetic for the dog, grains 

 ii. to grains x. are given dissolved in water, gr. ss. to grs. iii. 

 for cats, and grs. viii. to grs. xxiv. for pigs. Externally, the 

 powder or a watery solution is applied, and the crystals are 

 used as an escharotic. A useful caustic injection for sinuous 

 wounds is made with two ounces each of copper and zinc 

 sulphates, three ounces of lead acetate and a pint of vinegar. 

 Shepherds make an ointment for foot-rot with equal weights 

 of powdered blue vitriol, gunpowder and lard. A more 

 convenient and adhesive application is prepared by carefully 

 mixing over a slow fire one part of powdered blue vitriol 

 with one of lard and two of tar. A resinate of copper may 

 be made by boiling 12 parts of copper sulphate in 250 parts 

 of water, and adding 25 parts of powdered resin. The solid 

 resinate, dissolved as required in methylated alcohol and 

 glycerin, is used as an injection for quittor and similar 

 wounds. 



COPPER IODIDE. Cupri lodidum. Cuprous Iodide. Cu 2 I 2 - 



It is the by-product in one of the processes for making 

 iodine, and is also obtained by mixing solutions of cuprous 

 sulphate and potassium iodide. It is a fawn-coloured salt, 

 has a disagreeable, styptic, coppery taste, and evolves an 

 odour of iodine. It was introduced in the belief that it 

 conjoined the actions of its two constituents ; but large 

 doses, in which its characteristic actions should be most 

 obvious, produce the effects of other soluble copper salts. 

 It has been recommended as a stimulating tonic in chronic 



