STYBAX TOLU AND PERU BALSAMS 651 



in foals, sodium benzoate abates the fever, and reduces 

 the swelling of the limbs in strangles and pneumonia. 

 According to W. Rutherford, it is a powerful hepatic 

 stimulant. It is excreted in the urine as a soluble hippurate. 

 A two per cent, solution is a good preservative for scalpels, 

 forceps, needles, etc., in daily use. Instruments may be 

 kept in the solution for months without oxidising. 



DOSES, etc. of benzoin for horses and cattle, ^iv. or 

 more ; dogs, grs. v. to grs. x. ; in bolus or electuary. 

 Benzoic acid, horses and cattle, grs. xxx. to grs. Ixxv. ; 

 dogs, grs. ii. to grs. viii., in bolus, pill, or drench. Hypo- 

 dermieally, horses may be given grs. vi. benzoic acid dis- 

 solved in two drachms of a solution of equal parts of alcohol 

 and water. Intratraeheally, two drachms to half an ounce 

 of a one per cent, aqueous solution may be used. Sodium 

 benzoate is prescribed in considerably larger doses, and 

 generally in drench. 



Styrax or Prepared Storax, a balsam obtained from the 

 trunk of Liquidambar orientalis, and purified by solution 

 in alcohol, filtration and evaporation. Contains styrol, 

 cinnamic acid, styracin and various resins. Storax is a 

 constituent of the compound tincture of benzoin, and is 

 occasionally employed as a mild stimulant, expectorant 

 and parasiticide. For mange, lice, or fleas in dogs, it is 

 used mixed with an equal part of sweet oil. 



Balsam of Tolu. The product of the Myroxylon toluifera, 

 contains a volatile oil, various resins, benzoic and cinnamic 

 acids. Soluble in alcohol, benzol and chloroform. It is 

 stimulant and expectorant. Doses for dogs and cats, H\x. 

 to 3J- per day. 



Balsam of Peru, obtained from Myroxylon Pereirae, 

 contains about 60 per cent, of a volatile oil, various resins 

 and cinnamic and benzoic acids. It is insoluble in water 

 and olive oil ; soluble in alcohol and in chloroform. It is 

 an expectorant and parasiticide. The volatile oil is toxic 

 to the acari of mange for which a dressing is made with one 

 part Balsam of Peru and eight of lard. Doses for horses 

 and cattle, 3iij- * ]" 5 dogs and cats, fl\v. to H\xv. ; in 

 pills, capsules, or in emulsion. 



