SALTS OF MERCURY 429 



der; mercury 38 ; clarified honey 10 ; chalk 57 ; water q.s. This is 

 a finely divided form of mercury obtained by triturating mercury 

 with clarified honey. Moist chalk is then added. It contains 38 

 per cent, of mercury, and is useful as a laxative, antacid and altera- 

 tive. Very useful in diarrheas of young animals, foals, calves, 

 puppies. 



Doses. Foals and calves gr. x — xv; 0.6- — 1. Dogs gr. 



j— iv; .065—0.3. 



( 



Unguentum Hydrargyri. Mercurial ointment. Contains 50 

 per cent, of mercury. 



Unguentum Hydrargyri Dilutumj Diluted mercurial Ointment 

 — Blue ointment ; mercurial ointment 600, petrolatum 400. 



Mercurial ointment contains 50 per cent, of mercury. It is 

 made very similarly to blue mass. These ointments are quite exten- 

 sively used as absorbents and in skin diseases but should not be ap- 

 plied over large areas on account of danger from absorption. They 

 are very useful as absorbents in such conditions as synovitis, bursitis, 

 arthritis and glandular enlargements. Mercurial ointment is also 

 a parasiticide but is usually employed as Blue ointment — Unguen- 

 tum Hygrargyri Dilutum — which contains 30 per cent, of Mercury. 

 Avoid use on cattle as they are said to be very susceptible. 



* Emplastrum Hydrargyri. Mercurial plaster, contains 30 per 

 cent, of mercury. Used externally as an application for enlarged 

 glands, parasites, eczema. 



SALTS OP MERCURY 



HYDRARGYRI CHLORIDI CORROSIVUM — CORROSIVE 

 MERCURIC CHLORIDE 



Synonyms. Corrosive sublimate, mercuric chloride, bichloride 

 of mercury, perchloride of mercury. 



Bichloride of mercury occurs as heavy, colorless, rhombic cry- 

 stals, or crystalline masses or as a white powder; odorless, perma- 

 nent in air, and having a characteristic and persistent metallic taste. 

 It is soluble in 13 parts of water, 3, of alcohol and about 12, of 

 glycerin. It may be made more soluble by the addition of hydro- 

 chloric, tartaric or citric acid, or ammonium chloride. 



Doses. H. & 0. gr. jss — iij ; 0.1 — 0.2. Sh. & Sw. gr. %— 

 Vs ; 0.01—0.02. D. gr. V12— % ; 0.005—0.01. 



Action and Uses. The action of this salt has been previously 

 given. It is used internally as an alterative and tonic; externally 

 as a caustic, antiseptic, disinfectant, parasiticide, resolvent and irri- 

 tant. 



* UnoflScial. 



