Page 108 - My FlipBook

106 DENTAL MEDICINE.
sulphur, magnesia, castor oil, etc. Saline Purgatives^ which pro-
duce increased secretion, and at the same time hasten the peri-
staltic action, the stools being loose and watery. Included in this
class are sulphate of magnesia, phosphate of soda, tartrate of
potassium and sodium, Seidlitz powder, bitartrate of potassium, etc.
Mercurial Purgatives^ principally calomel and blue mass, which
are supposed to produce cholagogue effects, and also an influence
peculiar to themselves. Tonic-astringent and resin-bearing purga-
tives^ which have an influence over the liver and the glandular
appendages, and promote the tonicity of the muscular layer of
the intestines. Included in this class are senna, rhubarb, aloes,
jalap, scammony, colocynth, podophyllum, etc. Hydragogue pur-
gatives^ which are very energetic in their action, increase the
glandular secretions and cause an abundant outward diffusion to
such a degree as to produce very watery stools ; and also excite
rapid and severe peristaltic movements. Included in this class
are gambogia, croton-oil, elaterium, etc. (See Cathartics.)
REFRIGERANTS.
Refrigerants are medicinal agents which are capable of dimin-
ishing heat and allaying thirst. . They are also called Febrifuges.
Included in this class are nitrate of potassa, chlorate of potassa,
solution of acetate of ammonia, acetic acid, citric acid, hydro-
chloric acid, nitric acid, tartaric acid, spirits nitrous ether, etc.,
etc.
RESOLVENTS.
Resolvents belong to the class of Alteratives and Emollients,
being medicinal agents capable of reducing inflammation and dis-
persing morbid swellings. (See Alteratives and Emollients.)

RESTORATIVES.
Restoratives belong to the class of Stimulants and Tonics.
(See Stimulants and Tonics.)
SIALAGOGUES.
Sialagogues are medicinal substances capable of increasing the
salivary secretion by a stimulant or irritant effect. By the ex-
citant properties of these agents the lining membrane of the