46 SULPHUR. VERMIFUGE DRUGS. 



Though much less than formerly, Sulphur is still used for its mild laxative effect, 

 with soft stools. Dose, 4 Gm., Sulphur Lotum. Externally, it is a specific for scabies. 

 When burned in the presence of adequate moisture it serves as a general fumigating 

 disinfectant. 



TERPINI HYDRAS. 



Terpin Hydrate is obtained by crystallizing the hydrate of the diatomic alcohol, 

 Terpin, out from a mixture of alcohol, nitric acid, and rectified oil of turpentine. 



Properties: 



Appearance 

 Color .. 



Odor 

 Taste 



Solubility: H 2 O, I in 200; C2H 5 OH, i in 13. Efflorescent in dry air. 

 Terpin is said to lessen cough in bronchitis. Dose, 0.25 Gm. 



THYMOL. 



Thymol is a phenol derived from the volatile oil of Thymus vulgar c (Fam. Labi- 

 atcc). It should be kept in well-closed containers. 



Properties: 



Appearance 

 Color .. 



Odor 



Taste .. 



Solubility : 

 H 2 ... 



C 2 H 3 OH 

 Oils . 



Triturate a small amount with camphor 



Triturate a small amount with acetanilid 



To an alcoholic solution add KI, T. S FeCl;s, T. S. 



Thymol internally is specific for uncinariasis duodenale. Dose, I Gm. a day, 

 avoiding oils or fats in the meanwhile. 



VERMIFUGE DRUGS. 



Besides the thymol studied above, several other drugs are used for the expulsion 

 of worms from the human body. These are : 



Aspidium, which consists of the rhizomes and stipes of Dryopteris Filix-mas, or 

 of D. marginalis (Fam. Polypodiacece'). From the powdered drug is obtained the 

 active Oleoresina Aspidii. 



Santoninum, which is a neutral principle, the inner anhydride of santonic acid, is 

 obtained from the unexpanded flower-heads of Artemisia pauciflora, or "Levant 

 Wormseed" (Fam. Composites}. 



Quassia, which is the wood of Picrasma cxcelsa, or that of Quassia aniara (both 

 of the Fam. Simarubacece} . 



