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522 DENTAL MEDICINE.

skin, which is due to the local action of the salt as it is elimi-
nated. The long-continued use of this agent also causes a loss
of motion, and if it is injected into the tissues of a limb, it will
cause paralysis of motion and sensibility. It also diminishes the
sexual feeling, and the condition which a long course of the bro-
mides develop is known as bromism^ which is characterized by
weakness of mind, confusion, headache, pallor, and anaemia, un-
certain gait, etc.
Therapeutic Uses.—Bromide of potassium is employed as an
internal remedy in cerebral affections, acute rheumatism, cholera
infantum, seasickness, vomiting of pregnancy, affections of the
heart, as shown by increased action, neuralgia, maniacal excite-
ment, tetanus, strychnia poisoning, epilepsy, spasmodic asthma,
spasmodic cough, etc., etc.
Dose.—Of bromide of potassium, gr. v to .5j.
Dental Uses.—Bromide of potassium is a useful remedy in in-
fantile convulsions from the irritation of dentition, and is also
efficacious in preventing such conditions by relieving the irrita-
tion ; also in neuralgia, due to diseased teeth, and in facial neu-
ralgia when congestive in character. When combined with
morphine, bromide of potassium is useful for neuralgia of the
fifth nerve in the adult.
As its local effect is to diminish sensibility, it has been applied
to the pharynx and velum palati, in order to prepare such parts
for the taking of impressions for artificial palates, and to over-
come extreme susceptibility of the mucous membrane of the roof
of the mouth in first wearing artificial dentures. For such pur-
poses the agent is administered in one-half drachm doses 3 times
daily for two or three weeks previously ; or doses of grs. xx to
xxx may be given, repeated two or three times.

DENTAL FORMULA.
jFor Infantile Diarrhcca from Reflex Nervous Impressions.
R. Potassi bromidi gr.xviij to ^ss
Potassi nitratus gr.vj
Sacchari lactis ^ss. M.
Ft. pulv. vj.
SiGNA.—One powder every 3 or 4 hours to a child i year of age.