INFUSUM ANTHEMIDIS. L.E. It is a good stomachic; and when exhibited
warm, is well calculated to assist the operation of emetics: (_Form.
66_): the cold infusion, i. e. made with cold water, is more grateful.
_Incompatibles._ All _soluble preparations of iron_; _nitrate of
silver_; _oxy-muriate of mercury_; _acetate_, and _sub-acetate of lead_;
_solutions of isinglass_; _infusion of yellow cinchona bark_. Dose,
f℥j-f℥ij.
INFUSUM CALUMBÆ. L.E. See Calumbæ Radix. This infusion is more
perishable than that of other bitters; in twenty-four hours a copious
precipitation takes place in it, and in two days it becomes ropy, and
even musty. _Form. 155._ Dose, f℥i-f℥ij.
_Infusum Caryophyllorum._ L. f℥j. of this infusion holds in solution the
active matter of grs. vj of cloves. _Incompatibles._ Precipitates are
produced by _sulphate of iron_; _sulphate of zinc_; _acetate of lead_;
_nitrate of silver_; _tartarized antimony_; _lime water_, and _yellow
cinchona_. Dose, f℥j-f℥ij.
INFUSUM CASCARILLÆ. L. It is incompatible with the substances mentioned
under _Infus. Caryophyll: Form. 33._ Dose, f℥j-f℥ij.
INFUSUM CINCHONÆ. L.E.D. We obtain in this preparation a feeble solution
of the active constituents of bark, which will agree with many stomachs
that are rebellious to the stronger preparations. Dose, f℥i-f℥iij.
INFUSUM CUSPARIÆ. L. This is a judicious form of the bark, possessing
its stimulant and tonic properties. Dose, f℥j-f℥ij.
INFUSUM DIGITALIS. L.E. This is the best form in which we can administer
the _foxglove_, where our wish is to obtain its diuretic effects as
speedily as possible. (_Form. 110._) Dose, fʒij to f℥ss, twice a day,
_see Digitalis_. _Incompatibles._ We shall counteract its effects by
endeavouring to obviate its nauseating tendency by _brandy and water_,
&c. Precipitates are produced by _sulphate of iron_, and the _infusion
of yellow cinchona_, &c.
INFUSUM LINI COMPOSITUM. L.E. A cheap and useful demulcent; alcohol and
preparations of _lead_, are of course incompatible with it; the
_tinctura ferri muriatis_ produces a flocculent precipitate.
INFUSUM QUASSIÆ. L.E. The proportion of Quassia directed for half a pint
of water, is that of ℈j by the London, and ʒss by the Edinburgh College;
the former is much too small, for, in order to obtain a saturated
infusion, ʒij are required for that quantity of water. _Incompatibles._
_The salts of iron_ produce no change in it; nor is it affected by any
of those substances with which it is likely to come in contact in a
medical prescription. It is highly useful in debilities of the stomach
and intestinal canal, and in irregular and atonic gout, and it has been
observed, that in hysterical atony, to which the female sex is so prone,
the Quassia affords more vigour and relief to the system, than the
Peruvian Bark, especially when combined with a small portion of sulphate
of zinc. To this, as well as the other stomachic infusions, it is usual
to add at the time of prescribing them a small quantity of aromatic
tincture or spirit. _Form. 35; 144._ Dose, f℥ss-f℥iss.
INFUSUM RHEI. L.E. The Edinburgh infusion is stronger than that of
London, and is rendered more grateful by the addition of spirit of
cinnamon; these infusions, however, when given without any _adjuvants_,
produce but a feeble effect. This is obvious, since ℈j of rhubarb in
substance, is at least equivalent in its effects to ʒiss when in
infusion. _Incompatibles._ The _stronger acids_; _the sulphates of iron
and zinc_; _nitrate of silver_; _tartarized antimony_; _acetate of
lead_; _oxy-muriate of mercury_, and the infusions of _cusparia_,
_cinchona_, _catechu_, _galls_, and some other _astringent_ vegetables;
the _alkalies_ deepen the colour, but produce no decomposition. Dose,
f℥j-f℥ij.
INFUSUM SIMAROUBÆ. L. This infusion is inodorous, of a clear straw
colour, with a slightly bitter taste. It presents the best mode of
exhibiting _Simarouba bark_. Dose, f℥ij, beyond this it will prove
emetic. _Incompatibles._ _Alkaline carbonates_ and _lime water_ render
it milky; and it is precipitated by the following substances; _infusions
of catechu_; _galls_, and _yellow cinchona_; _oxy-muriate of mercury_;
_nitrate of silver_, and _acetate of lead_. See _Simaroubæ Cortex_.
INFUSUM TABACI. L. It is never used but as an enema, in incarcerated
hernia, and in ileus. See _Tabaci Folia_.