INDIAN HEMP. 623 



galls, itchy tail (and other forms of pruritis), inflammation of the 

 joints, including those of navel-ill, strains, bruises, etc. It is used 

 externally either as a liniment (1 part or more of ichthyol, and 2 

 parts each of spirit or ether and water), or as an ointment (1 part 

 of ichthyol to from 2 to 10 parts of lanoline, vaseline or oil). The 

 hair of the part should be clipped off, and the liniment or ointment 

 rubbed in twice a day. Internally it has been successfully employed 

 in cases of purpura and septic pneumonia, by intratracheal injec- 

 tions of about 1 oz., or 3^ oz. by the mouth. 



Indian Hemp ( Cannabis Indicd) 



is a very valuable soother of pain, and may be used in doses of- 

 \ to f oz. of the extract for colic, and also for tetanus. In such 

 oases, it acts far better than opium ; because its effect lasts longer, 

 and does not produce so much constipation, or such distressing 

 head symptoms. The present preparations, such as the extract, 

 are liable to deteriorate by keeping, and are not of imiform 

 strength. These objections will no doubt be rectified in the near 

 future by the employment of its active principle. 



Iodine. 



For its action in " Diabetes,'' see p. 500. 



Iodine Ointment. 



Iodine ... ... ... ... ... 1 part. 



Lard ... ... ... ... ... 8 parts. 



Useful in cases of parasitic ringworm. 



Tincture of Iodine. 



Iodine ... ... ... ... ... g oz. 



Iodide of potassium ... ... ... g oz. 



Rectified spirit ... ... ... ... 1 pint. 



Liniment of Iodine. 



Iodine ... ... ... ... ... 2^ oz. 



Iodide of potassium ... ... ... 1 oz. 



Glycerine ... ... ... ... ... g oz. 



Rectified spirit ... ... ... ... 1 pint. 



The liniment is 5 times stronger than the tincture. These three 

 preparations of iodine are absorbents and counter irritants. 



