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98 DENTAL MEDICINE.

sub-classes recognized, which have not been specially referred to
in the preceding definitions, as follows :
Absorbents, Detergents, Hypersthenics,
Anodynes, Deodorizers, Hypnotics,
Antemetics, Diluents, Laxatives,
Anthridrotics, Discutients, Nervines,
Antiperiodics, Disinfectants, Nutritives,
Antipyretics, Emollients, Purgatives,
Antiseptics, Errhines, Refrigerants,
Aromatic Bitters, Escharotics, Resolvents,
Carminatives, Expectorants, Restoratives,
Caustics, Evacuants, Sialogogues,
Cauterants, Excitants, Stimulants,
Constringents, Febrifuges, Styptics,
Counter-irritants, Germicides, Vesicants.
Desiccatives, Hemostatics,
ABSORBENTS.
Absorbents, known also as Desiccatives^ are medicinal agents
capable of checking secretions, and drying up secretions, or dis-
charges from ulcers and suppurating wounds. Included in this
class are tannic acid, oxide of zinc, charcoal, subnitrate of bis-
muth, starch, powdered galls, magnesia, powdered myrrh, car-
bonate of lime, etc., etc.
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ANODYNES OR ANALGESICS.

Anodynes, which with sedatives, hypnotics, or soporifics, are in-
cluded in the group of narcotics, are medicinal agents capable of
alleviating pain by lessening the sensibility of the nerve-centres
or the peripheral extremities. When applied locally they are
called analgesics. Included in this class are opium, morphia,
chloroform, sulphuric ether, aconite, croton, chloral, belladonna,
camphor, gelsemium, cannabis indica, stramonium, hyoscyamus,
carbolic acid, atropine, creasote, cocaine, eugenol, iodoform,
iodol, antipyrin, blood-letting, heat and cold, acupuncture, etc.,
etc.
ANTEMETICS.
Antemetics are medicinal agents capable of arresting vomiting.
Included in this class are creasote, dilute hydrocyanic acid, lime