NAPHTHALENUM -^ NAPHTHALEN 4.59 



;for this purpose. Lcicglly it is antiseptic and aiiiipruritic. Resor- 

 cin is most frequently used externally, in skin diseases, such as 

 scratches, eczema^ wounds, etc., in a 1 per cent, solution or 10 per 

 cent, ointment ' A 3 to" 5 per cent, solution is very useful in seb- 

 orrhea, especially with dandruff. In eczema and pruritis it is. em- 

 ployed in from' 1 to 5 per .cent, solution. Sodium chloride is said to 

 enhance its antipruritic action. It may be used internally as an 

 intestinal antiseptic. 



Seborrhea. 



R Eesorcinolis 3 jgg 



Olei Eicini Tix xx-xxx 



Alcoholis q. s ad. 3 iv 



M. Pt. Sol. 



Sig. Apply to parts once or twice daily. 



Antipruritic. 



R Eesorcinolis gr. xv-xxx 



Sodii Chloridi gr. xv 



Liquoris Calcis q. s ad. S iv 



M. Ft. Sol. 



Sig. Apply to parts daily, or more frequently if necessary. 



TRINITROPHENOL 



Synonym. Picric Acid 



This is prepared by the action of nitric acid upon phenol-sul- 

 phonic acid, obtained by dissolving phenol in sulphuric acid. It 

 occurs in yellow, flat odorless scales or crystals of very bitter taste. 

 Slightly soluble in water, soluble in alcohol and ether. 



Action. Locally it is a caustic in concentration, turning the 

 skin yellow. It is also a feeble germicide. Internally it is a cor- 

 rosive poison. 



Therapeutics. 



Externally. Bums. Minor degrees of bums are treated as fol- 

 lows: Gauze is wet with a 1 per cent, solution of the drug and is 

 applied and covered with cotton. It should not be used over large 

 or deep bums, on account of danger of poisoning. It is also recom- 

 mended by some iu. a 1 to 6 per cent, hydro-alcoholic solution as a 

 dressing for moist eczema arid scratches. 



Internally it has been used as a vermicide for strongylosis and 

 tapeworms of sheep. For this purpose it is given in doses of 1 to 3 

 grains in mucilaginous drinks. 



* NAPHTHALENUM 



Synonyms. ISTaphthalen, IsTaphthalin, Tar Camphor 

 This is a hydrocarbon obtained by the distillation of coal tar be- 

 tween 180° and 250° C. It occurs as white shining scales, of a 

 * UnoflScial. 



