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CAFFEINE-CAFFEINA. 311

DENTAL FORMULA.
For Facial Neuralgia, Migraine, etc. For Facial Neuralgia, etc.
R Caffeinae Citrat. ;5ss
R. Caflfeinje gr.xx . . .
ziii
-,,
rhenacetin .... Amnionii bromidi . . /Z-.
^.
Elix. guaranae . . . 13 ij. M.
Pulv. aromatic . aa ^ss. M.
.
signa._A teaspoonful every hour or
SiGNA.—A powder every 2 or 3 hours. two until pain is relieved.
CALCII HYPOPHOSPHIS—HYPOPHOSPHITE OF LIME.
Formula.—Q2.Y{1?0^^.
Derivation.—The salt, Hypophosphite of Lime is obtained by
boiling phosphorus in a mixture of hydrate of lime in boiling
water, until phosphoretted hydrogen escapes, and phosphate and
hypophosphite of lime are formed in the solution, which is then
filtered and evaporated over sulphuric acid, when the salt is crys-
tallized out in the form of white, pearly crystals, with a nau-
seous, bitter taste. It is soluble in six parts of water, but is in-
soluble in alcohol.
Medical Properties and Action.—The hypophosphite of lime,
with those of soda and potassa, are all included under the term
"alkaline sulphites." Taken internally, they are readily ab-
sorbed, and are partially changed in the system into sulphates.
They combine with acids to form salts, and they dissolve albu-
men, and increase the formation of saliva. Being regarded as
tonic, alterative, stimulant and nervine, they are employed in
cases of debility, more especially where the phosphates are
deficient, as they possess the therapeutic properties of phos-
phorus.
Therapeutic Uses.—The different sulphites of lime, soda, and
potassa, are employed in intermittent and malarious fevers, typhus
fever, smallpox and other exanthematous diseases, pyemia, dys-
pepsia, neuralgia with nervous depression, anemia, for which
affections they are combined with iron and quinine; diphtheria,
cystitis, phthisis, etc., etc. Externally, the sulphites are efficient
as local applications (especially the sulphites of soda), in gangre-
nous and other ulcerations, diseases of the skin, etc. One or two
ounces to the pint of water form a stimulant and deodorizing
lotion, which is promotive of healthy action.