Epitome of the Pharmacopeia of the United States and the National Formulary Part 53

=OLEA INFUSA (OL. INF.), INFUSED OILS, N.F.=--Liquid preparation made by extracting drugs by fixed oils.

=OLEATA, OLEATES.=--Oleates are combinations of alkaloids or metallic oxids with oleic acid or with mixtures of oleic acid with a fixed oil.

They have no real advantage over simpler ointments. For the official oleates see under the names of the respective drugs.

=OLEORESINAE, OLEORESINS.=--Oleoresins are thick liquid preparations made by extracting the drug with ether, alcohol or acetone. For the official oleoresins see under the names of the respective drugs.

=OLEOSACCHARA (OLEOSACCHARA), OIL-SUGARS, N.F.= (Elaeosacchara).--Mixtures of volatile oil (2%) with sugar in fine powder.

=Oleum Aethereum (Ol. Aether.), Ethereal Oil, N.F.=--A volatile liquid consisting of equal volumes of heavy oil of wine (chiefly ethyl esters of sulphuric acid) and ether. An indefinite and obsolete ingredient of the medieval "Hoffmann's anodyne."

=Oleum Amygdalae Amarae (Ol. Amygd. Amar.), Oil of Bitter Almond, U.S.P.= (Bitter Almond Oil).--A volatile oil yielding benzaldehyde (not less than 85%) and hydrocyanic acid (about 3%).

Slightly soluble in water; miscible with alcohol or ether.

ACTION AND USES: Flavoring agent, especially for emulsions. Also used as a "sedative," but probably without value.

DOSAGE: 0.03 Cc. or 1/2 minim (U.S.P.).

_Aqua Amygdalae Amarae (Aq. Amygd. Amar.), Bitter Almond Water, U.S.P._--A solution of oil of bitter almond in water.

DOSAGE: 4 Cc. or 1 fluidrachm (U.S.P.).

_Elixir Amygdalae Compositum (Elix. Amygd. Co.), Compound Elixir of Almond, N.F._--Oil of bitter almond, vanillin, orange flower water, syrup, water and alcohol. Absolute alcohol content about 5 per cent.

_Spiritus Amygdalae Amarae (Sp. Amygd. Amar.), Spirit of Bitter Almond, U.S.P._--Oil of bitter almond, alcohol and water. Absolute alcohol content about 76 per cent.

=Oleum Amygdalae Expressum (Ol. Amygd. Exp.), Expressed Oil of Almond, U.S.P.= (Oil of Sweet Almond).--A fixed oil; similar to olive oil.

ACTION AND USES: Emollient, nutritive and laxative.

=Oleum Anisi (Ol. Anisi), Oil of Anise, Oil of Star Anise, U.S.P.= (Anise Oil).--A volatile oil from anise and from star anise.

Very slightly soluble in water; very soluble in alcohol.

ACTION AND USES: Aromatic carminative and flavor.

DOSAGE: 0.2 Cc. or 3 minims (U.S.P.), on sugar.

_Aqua Anisi (Aq. Anisi), Anise Water, U.S.P._--A solution of oil of anise in water.

_Spiritus Anisi (Sp. Anisi), Spirit of Anise, U.S.P._--Oil of anise (10%) in alcohol. Absolute alcohol content about 85 per cent.

DOSAGE: 2 Cc. or 30 minims (U.S.P.).

=Oleum Aurantii (Ol. Aurant.), Oil of Orange, U.S.P.= (Oleum Aurantii Corticis, U.S.P. VIII, Orange Oil, Oil of Sweet Orange).--A volatile oil.

Nearly insoluble in water; soluble in alcohol and ether.

ACTION AND USES: Aromatic flavor.

_Spiritus Aurantii Compositus (Sp. Aurant. Co.), Compound Spirit of Orange, U.S.P._--Oils of orange, lemon, coriander and anise, in alcohol.

Absolute alcohol content about 69 per cent.

=Oleum Aurantii Amari (Ol. Aurant. Amar.), Oil of Bitter Orange, N.F.=--A volatile oil.

Practically insoluble in water; soluble in alcohol (1:4).

ACTION AND USES: Flavoring agent.

_Elixir Aurantii Amari (Elix. Aurant. Amar.), Elixir of Bitter Orange, N.F._ (Replacing Elixir Cura.s.sao, N.F. III).--Oil of bitter orange, tincture of bitter orange peel, stronger orange flower water, in syrup, water and alcohol. Absolute alcohol content about 28 per cent.

=Oleum Aurantii Florum (Ol. Aurant. Flor.), Oil of Orange Flowers, N.F.= (Oil of Neroli).--A volatile oil.

Nearly insoluble in water; soluble in alcohol.

ACTION AND USES: Flavoring agent.

=Oleum Bergamottae (Ol. Bergam.), Oil of Bergamot, N.F.=--A volatile oil.

Practically insoluble in water; freely soluble in alcohol.

ACTION AND USES: Flavoring agent.

_Spiritus Odoratus (Sp. Odorat.), Perfumed Spirit, N.F._--Oils of bergamot, lemon, rosemary, lavender and orange flowers, acetic ether, water and alcohol. Absolute alcohol content about 80 per cent.

=Oleum Betulae Empyreumatic.u.m Rectificatum (Ol. Bet. Empyr. Rect.), Rectified Oil of Birch Tar, N.F.= (Rectified Empyroligneous Oil of Birch, Oleum Rusci Rectificatum).--An oil obtained by the dry distillation of the bark and wood of white birch.

Insoluble in water; soluble in dehydrated alcohol, ether and chloroform.

ACTION AND USES: Similar to tar; employed locally as a stimulant and antiseptic in the treatment of psoriasis and eczema.

DOSAGE: 2 to 10 per cent. ointment.

=Oleum Cadinum (Ol. Cadin.), Oil of Cade, U.S.P.= (Cade Oil, Oil of Juniper Tar, Oleum Juniperi Empyreumatic.u.m).--An empyreumatic oil obtained by the dry distillation of juniper wood.