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IRON. 4,0X

body. Internally administered, they act like the sulphate of iron,
their remote effect being tonic and hemostatic. In small doses
they exert an astringent effect on the gastro-intestinal mucous
membrane, diminishing the quantity of fluids secreted or exhaled ;
hence their continued use will cause constipation.
Monsel's preparations of iron are principally used externally
for hemorrhage from bleeding vessels. When employed inter-
nally it is for the arrest of hemorrhage from remote organs.
Therapeutic Uses.—The solution and powder of the subsul-
phate of iron are used internally for hemorrhage from the stom-
ach and bowels. Externally, for hemorrhage, varicose ulcers,
etc., etc.
Dose.—Of the solution of subsulphate of iron, gtt. v to gtt. x,
twice a day in some bitter infusion. Of the powdered subsul-
phate of iron the dose is gr. v to gr. xv. The solution is also
given in small doses with the sulphate of magnesia, and as an ar-
tificial chalybeate purging water.
Dental Uses.—In dental practice, Monsel's solution and pow-
der are principally employed for arresting hemorrhage following
the extraction of teeth, hemorrhage from leech bites, and also
from other causes, such as wounds of the gums and mucous mem-
brane, in the treatment of ulcers of the mouth ; and the solution,
diluted with water, forms a serviceable application for abraded
and inflammed mucous surfaces.
Dialysed iron is suggested as a local application for soreness of
teeth following devitalization by arsenious acid, and removal of
pulp, the root canal also packed with cotton, moistened with
the iron preparation. It is an antidote for arsenious acid, and is
locally applied after the removal of arsenical devitalizing mix-
tures, with good effects.
For Hemorrhage following the Extraction of Teeth.—
After carefully cleansing the bleeding cavity as thoroughly as pos-
sible, the styptic should be applied on a pellet of cotton, or, in
case the powdered subsulphate of iron is employed, on a pellet of
cotton previously dipped in sandarach varnish, to which the
powder will adhere, and inserted over the mouth of the bleeding
vessel at the apex of the alveolar cavity. Cotton should then be