Page 22 - My FlipBook

DENTAL MEDICINE.
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general rule ; by the sex, as females possess greater susceptibility
of the nervous system, and more excitability of the vascular
system than males ; they have also less energy, and medicines act
on them more powerfully and rapidly and for a less period than
on males ; also climate influences the effects of medicines, as
some, such as narcotics for example, act more energetically in
hot climates, and others less energetically, calomel for example y
habit also influences the action of medicines, as some become
inert after long continued use ; also diseased conditions modify
the effects of medicines, such as mercury in fevers ; the idiosyn-
crasy also, as is shown by the effects manifested in different indi-
viduals ; mercury for example will cause profuse salivation in
susceptible patients when a very small quantity is adminis-
tered ; also the mind, as the cheerful convalesce sooner than the
despondent.
Some medicines have a specific action on certain tissues and
organs of the body,—as alcohol on the brain, strychnine on the
spinal cord.
Temperaments are peculiarities of organization characterizing
the different classes of individuals, the nervous patient being more
easily affected by medicinal, than he is by other agencies, while
the phlegmatic patient is not.
Idiosyncrasies are peculiarities belonging to single individuals,
and they are so numerous that a knowledge of them is important
for the practitioner.

TABLES FOR PREPARING PERCENTAGE SOLUTIONS.
The following tables of Dr. Sherrard, Ph. C, are simple and
require but little explanation. The first table gives percentage
solutions, as, for instance, per cent, cocaine muriate solution
4 ;
the second table gives parts in 1,000 or 5,000, as, for instance,
corrosive sublimate i in 1,000. The use of the first table is as
follows: Run down column i until the correct percentage
wanted is found, then move to the right along the line until the
column is found giving the amount of the fluid measure to be
made up; at the intersection will be found the weight of the salt
required. For example, suppose it is desired to make 4 fl. oz.