MEDICAL HINTS. 
229 
ammonia, bat is bulky. As a local application, it is of great value in 
relieving the pain caused by the bites of certain insects, e.g. } mosquitoes 
and fleas. 
Carbonate of ammonia.— -Dose, three to ten grains. 
Liquor ammonias , or solution of ammonia .-—Dose, five to twenty drops. 
(Note .—This is not the strong solution, which is always labelled 
“ Liq. Ammon. Fort./* and which is three times stronger than liquor 
ammoniae.) 
As a local application, the liquor ammonias, diluted with an equal 
quantity of water, may be injected into the wounds caused by snake- 
bites. 
Ammonium chloride. —Dose, five to twenty grains. This drug is chiefly 
used in congestion of the liver, especially where acute inflammation or 
abscess is threatened; at times it is useful in neuralgia and chronic 
bronchitis. It is also used for inflamed and relaxed sore throat, in the 
form of a gargle, five to ten grains to the ounce of water. 
Antipyrine. —Dose, five to ten grains. (Uses as Phenacetin.) 
* Araroha , or Goa powder .—-Is not for internal use. One part of the 
powder mixed with one of acetic acid and fourteen of lard makes what is 
known as araroha ointment. 
Araroha ointment is useful in many skin diseases, such as psoriasis; 
it easily destroys the parasites in ringworm, dhobie itch, or kraw 
kraw. It is a powerful drug, and should be used only in small 
amounts, for if applied too freely it will cause some inflammation 
and pain. 
* Arsenic. —Dose, one-sixtieth to one-fifteenth of a grain. Is a powerful 
and poisonous drug, and should bo taken with caution. It is useful in 
chronic malarial poisoning, and in angemia and debility, especially that 
following an attack of fever. 
It is best combined with iron in tabloid form—iron and arsenic 
tabloid—two of which may be taken twice a day, after food, for a week. 
This is a good general tonic. 
Bismuth carbonate.—D ose, five to twenty grains. This preparation of 
bismuth is slightly preferable to the subnitrate of bismuth, which is 
usually ordered. The action and doses of the two drugs are the same ; 
they are useful in dyspepsia, pain in the stomach, vomiting and diar- 
