432 SALTS OF THE HEAVY METALS 



2. Intestinal Antiseptic in distemper, influenza, purpura, etc. 



3. In Diarrhea of the Young to Serve as an antiseptic and rid 

 the animal of the irritant. 



4. Diuretic in conditions as mentioned previously. 



5. Calomel is also regarded as a vermicide for round worms. 

 It is best prescribed with santonin. In this combination each drug 

 seems to aid the other. 



6. Externally. Antiseptic and desiccant in moist eczema, 

 canker, thrush and foot rot. It is very useful added to zinc oxide 

 ointment in proportion of 5 to 20 grains to the ounce for subacute 

 and chronic eczema. It is probably the best single remedy for the 

 treatment of thrush in horses, and is useful in corneal ulcers and 

 phlyctenular conjunctivitis. 



Incompatibles. It is incompatible with chlorates, chlorides, 

 iodides, bromides, and lime water. 



* Lotio Nigra. Black Lotion. This is made by adding 1 dram 

 of calomel to 16 ounces of lime water. Black mercuric oxide is pre- 

 cipitated and calcium chloride remains in solution. This is useful 

 in acute eczema. It should be daubed upon the parts and allowed 

 to dry. Then follow with ointment of zinc oxide. 



HYDRARGYRI lODIDUM RUBRUM — RED IODIDE OF 



MERCURY 



Synonyms: Biniodide of Mercury, Mercuric Iodide 



Bed iodide of mercury occurs as a scarlet red amorphous powder, 

 odorless, tasteless, slightly soluble in water and in 116 parts of al- 

 cohol, but freely soluble in solutions of potassium iodide. 



Doses. Very seldom used internally. 



Preparation. Liquor Arseni et Hydrargyri lodidi. Dono- 

 van's solution. Contains 1 per cent, of each iodide. 



Doses. H. and C. 3ij— §j ; 4—30. D. Ill ij— x; 0.13—0:6. 



Therapeutics. It resembles the bichloride and is almost en- 

 tirely used externally as an irritant and antiseptic. It is a favorite 

 blister in ointments with lard or petrolatum 1 :3 — 8 or in strong 

 alcoholic solution for diseases of the bones. It is believed that its 

 action extends deeply. It is a strong antiseptic, but rarely used for 

 this purpose. 



IJ Hydrargyri lodidi Eubri. 



Oantharidis . . . .' aa 3 ij 



Adipis g ij 



M. rt. TTnguentum. 



Sig. Apply to spavin or ringbone. Eub well. 

 * Unofficial. 



