324 Botanic Drugs 



of hookworm disease, or infestation with the Nercator 

 Americanus or Ankylostoma duodenale. From }/% 

 to 1 drachm of thymol, divided in four doses and 

 given in capsules in the course of a day, and fol- 

 lowed by a tablespoonful of magnesium sulphate in 

 water, is the approved treatment; but the U. S. P. 

 gives the average anthelmintic dose as 15 grains 

 per day. This large dosage should not be frequently 

 repeated, and castor oil should not be used as the 

 purgative. Allow no oil or alcohol, since thymol is 

 soluble in them. 



Oil of chenopodium is coming into use in the 

 place of thymol in the treatment of hookworm dis- 

 ease. See "Chenopodium." 



Thymol has been recommended as an internal 

 antiseptic in the treatment of many diseases, but 

 it is not very effective. The average dose is 2 

 grains. 



THYMOL IODIDE, ARISTOL, is official in the U. S. P. 

 It is a condensation product of two molecules of 

 thymol with two atoms of iodine, and is dithymol 

 diiodide. An efficient substitute for iodoform, it 

 is a valuable dry surgical dressing; but upon serous 

 membranes it tends to prevent their adhesion. It 

 is contraindicated when secretion is free. It is em- 

 ployed in affections such as lupus, psoriasis, eczema, 

 syphilitic lesions, and in diseased conditions of the 

 mucous membranes. It may be used in oil, ether, 

 flexible collodion, lanolin, or petrolatum. Never 

 heat it, nor mix with alkalies, metallic oxides, or 

 starch. 



TOLU 



TOLTJ BALSAM, from Toluifera balsamum, is almost 

 universally official. It is also called Myroxylon tolu- 



