Extracts

Semi-solid or solid preparations, made by evaporation of a solution of the soluble substances of drugs. Twenty- five official..

Resins

Peculiar substances soluble in alcohol and insoluble in water. It is the resinous constituent which causes the thick precipitate seen when resinous tinctures are diluted with water. Such preparations are better diluted with weak wine. Four official.

Cerates

Preparations made for inunction with white wax. They differ from ointments in that they contain a large portion of wax and do not liquefy at the body temperature. They are intended for dressings. Three official.

Confections

Medicinal substances prepared with a mass of sugar and honey None official.

Pills

Seven official. Need no general description.

Powders

Seven official. Need no general description.

Papers

Papers impregnated with medicinal substances. One official, which is for vesication. The word "charta" also means the small papers in which powders are done up, or, by inference, the powder itself.

Ointments

Preparations with a basis of vaseline, fixed oils, or lard, to be used by inunction. Twenty official.

Plasters

Medicinal substances mixed with lead plaster, wax, resin or gum resin, and spread upon coarse muslin or white leather, and adherent at the body temperature to the skin. Seven official.

Troches

There are five official. Troches are medicated lozenges.

Suppositories

Slender cone-shaped appliances for insertion into the rectum, urethra, or vagina. The basis is usually cocoa butter. They should be protected against heat and moisture.