Canadian Medical Guide > Chemicals and Drugs > Pharmaceutical Preparations > Dosage Forms Terms and Definitions

Dosage Forms

Medical Definition:

Completed forms of the pharmaceutical preparation in which prescribed doses of medication are included. They are designed to resist action by gastric fluids, prevent vomiting and nausea, reduce or alleviate the undesirable taste and smells associated with oral administration, achieve a high concentration of drug at target site, or produce a delayed or long-acting drug effect. They include CAPSULES; LINIMENTS; OINTMENTS; PHARMACEUTICAL SOLUTIONS; POWDERS; TABLETS; etc.

Guide Notes:

GEN only: prefer specific drug with qualif /admin; Manual 25.12.2; examine also indentions under DRUG ADMINISTRATION ROUTES in Cat E5

Dosage Forms Categories.

	Capsules - Hard or soft soluble containers used for the oral administration of medicine.
	Colloids - Two-phase systems in which one is uniformly dispersed in another as particles small enough so they cannot be filtered or will not settle out. The dispersing or continuous phase or medium envelops the particles of the discontinuous phase. All three states of matter can form colloids among each other.
	Delayed-Action Preparations - Dosage forms of a drug that act over a period of time by controlled-release processes or technology.
	Drug Carriers - Forms to which substances are incorportated to improve the delivery and the effectiveness of drugs. Drug carriers are used in drug-delivery systems such as the controlled-release technology to prolong in vivo drug actions, decrease drug metabolism, and reduce drug toxicity. Carriers are also used in designs to increase the effectiveness of drug delivery to the target sites of pharmacological actions. Liposomes, albumin microspheres, soluble synthetic polymers, DNA complexes, protein-drug conjugates, and carrier erythrocytes among others have been employed as biodegradable drug carriers.
	Liniments - Heat-generating liquids that are thinner than ointments and are applied to the skin with friction. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
	Ointments - Semisolid preparations used topically for protective emollient effects or as a vehicle for local administration of medications. Ointment bases are various mixtures of fats, waxes, animal and plant oils and solid and liquid hydrocarbons.
	Pharmaceutical Solutions - Homogeneous liquid preparations that contain one or more chemical substances dissolved, i.e., molecularly dispersed, in a suitable solvent or mixture of mutually miscible solvents. For reasons of their ingredients, method of preparation, or use, they do not fall into another group of products.
	Powders - Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)
	Suppositories - Medicated dosage forms that are designed to be inserted into the rectal, vaginal, or urethral orifice of the body for absorption. Generally, the active ingredients are packaged in dosage forms containing fatty bases such as cocoa butter, hydrogenated oil, or glycerogelatin that are solid at room temperature but melt or dissolve at body temperature.
	Tablets - Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)
	Vaginal Creams, Foams and Jellies - Medicated dosage forms for topical application in the vagina. A cream is a semisolid emulsion containing suspended or dissolved medication; a foam is a dispersion of a gas in a medicated liquid resulting in a light, frothy mass; a jelly is a colloidal semisolid mass of a water soluble medicated material, usually translucent.

Dosage Forms Medical Definitions and Terms

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Dosage Forms

Dosage Forms Medical Definitions and Terms

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