Drug delivery system
Drug delivery system (pronunciation: drʌg dɪˈlɪv(ə)ri sɪˈstɛm) is a method or process that enables the administration of therapeutic substances to achieve a therapeutic effect in humans or animals.
Etymology
The term "drug delivery system" is derived from the English words "drug" (from Old French drogue, possibly from Middle Dutch droge-vate, dry barrels, referring to medicinal plants conserved in them), "delivery" (from Old French delivrer, to set free), and "system" (from Late Latin systema, an entire thing; used in the sense of a combination of related parts).
Types of Drug Delivery Systems
There are several types of drug delivery systems. These include:
- Oral drug delivery systems: This is the most common and preferred route of drug administration. It involves the ingestion of drugs through the mouth.
- Parenteral drug delivery systems: This involves the administration of drugs by routes other than the digestive tract, such as intravenous, intramuscular, or subcutaneous injection.
- Transdermal drug delivery systems: This involves the administration of drugs through the skin for systemic distribution.
- Inhalation drug delivery systems: This involves the administration of drugs through inhalation into the lungs.
- Targeted drug delivery systems: This involves the use of specific carriers to deliver drugs directly to diseased cells or tissues.
Related Terms
- Pharmacokinetics: The study of how a drug is absorbed, distributed, metabolized, and excreted by the body.
- Pharmacodynamics: The study of the biochemical and physiological effects of drugs and their mechanisms of action.
- Bioavailability: The proportion of a drug or other substance which enters the circulation when introduced into the body and so is able to have an active effect.
- Drug metabolism: The process by which the body breaks down and converts medication into active chemical substances.
External links
- Medical encyclopedia article on Drug delivery system
- Wikipedia's article - Drug delivery system
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