These are ointments containing wax. The admixture of wax with oil or lard in cerates renders them harder than ointments, though they are softer than plasters. They can be spread on linen or leather, at ordinary temperatures, without requiring heat like plasters, and they can be applied to the skin without melting and running like ointments.

u.s.p. (8).

Ceratum.

Camphorae. ,, Cantharidis. „ Cetacei.

Ceratum Extracti Cantharidis. ,, Plumbi Subacetatis. „ Resinae. „ Sabinae.

Chartae. Papers. - Charta epispastica or cantharidis, and charta sinapis, consist of irritating substances spread upon paper, and used for the purpose of producing rubefaction or vesication. Charta potassii nitratis consists of bibulous paper soaked in a solution of nitrate of potassium and dried, and is used for burning to give relief in asthma by inhalation of the fumes.

B.P. (2)

Charta Epispastica. „ Sinapis.

u.s.p. (3).

Charta Cantharidis. „ Potassii Nitratis. „ Sinapis.

Collodia. Collodions. - In these collodion is used as a solvent and means of application.

B.P. (3)

Collodium.

,, Flexile.

„ Vesicans.

u.s.p. (3). Collodium.

„ cum Cantharide.

„ Flexile.

,, Stypticum.

Confectiones. Confections, Electuaries or Conserves.-These are soft pastes which contain the drug mixed with sugar or honey, and are convenient forms of administering drugs, which would be unpleasant to take alone, and would be too bulky for pills. In two of them, the confection of dog roses, and of red roses, the drug is of itself inert, and the confection is used only as a vehicle; in the others, the drug is active, and the confection is used as a mode of administering it. The dose of all is 1 to 2 drachms, with the exception of the confection of opium (B.P.) and of scammony (B.P.).

B.P. (8).

Dose.

Confectio

Opii.......................

5-20 grs.

"

Piperis..................

"

Rosae Caninae.......

"

Rosae Gallicae........

"

Scammonii..............

10-30 grs.

"

Sennae...................

"

Sulphuris..............

"

Terebinthinae..........

u.s.p. (2).

Dose.

Confectio

Rosae......................

"

Sennae....................

1-2 dr.

Decocta. Decoctions. - These are made by boiling the drug with water, and then straining while hot. Usually the boiling is continued from ten to twenty minutes, in order to dissolve out the active part of the drug; prolonged boiling frequently alters it, and may render it inert.

B.P. (13).

Dose.

Decoctum

Aloes Compositum

1/2-1 fi. oz

"

Cetrariae.................

ad lib

"

Cinchonae [Rubrae]

1-2 fl. oz

"

Granati Radicis ......

"

"

Granati Radicis........

"

"

Haematoxyli...........

ad lib.

"

Papaveris...............

for external use.

"

Pareirae................

1-2 fl. oz

"

Quercus...............

"

U.S.P. (2).

Dose.

Decoctum

Cetrariae.................

ad lib.

"

Sarsaparillae Compositum..............

4-6 fl. oz.

B.P.

Dose.

Decoctum

Sarsae................

2-10 fl. oz.

"

Sarsae Compositum

"

"

Scoparii.................

2- 4 fl. oz.

"

Taraxaci................

"

U.S. P. Elixiria. Elixirs. - These are diluted tinctures rendered agreeable by aromatics and sugar. The only one in the U.S.P. is used as a vehicle.

U.S.P. (l). Elixir Aurantii (Simple Elixir).

Emplastra. Plasters. - These consist of adhesive substances spread upon leather or cloth, so as to stick to the part of the body to which they are applied.

Lead plaster is one of the most important, as it forms a basis for other plasters. It is also used for covering slight wounds and excoriations. Resin plaster is more adhesive, and is used to hold the edges of wounds together and to apply pressure. Two others, emplastrum belladonnae and emplastrum opii, contain narcotic substances with the intention of lessening pain locally. The others are used for the purpose of affording mechanical support or gentle stimulation, and emplastrum cantharidis (B.P.) is used as a vesicant.

B.P. (14).

Emplastrum

Ammoniaci cum Hydrargyro.

"

Belladonnae.

"

Calefaciens (warming).

"

Cantharidis.

"

Ferri.

"

Galbani.

"

Hydrargyri.

"

Opii.

"

Picis.

"

Plumbi.

"

" Iodidi.

"

Resinae.

"

Saponis.

"

" Fuscum.

u.s.p. (17).

Emplastrum

Ammoniaci (Ammoniac).

"

" c. Hydrargyro (ammoniac with mercury).

"

Arnicae (Arnica).

"

Asafoetidae (Asafoetida).

"

Belladonna3 (Belladonna).

"

Capsici (Capsicum).

"

Ferri (Iron).

"

Galbani (Galbanum).

"

Hydrargyri (Mercurial).

"

Icthyocollae (Court).

"

Opii (Opium).

"

Picis Burgundicae (Burgundy pitch).

"

Picis Canadensis (Hemlock pitch).

"

Picis cum Cantharide (warming).

"

Plumbi (Diachylon).

"

Besinae (adhesive).

"

Saponis (Soap).