Drug delivery is the method or process of administering a pharmaceutical compound to achieve a therapeutic effect in humans or animals^{[1] [2]}. Most common methods of delivery include the preferred non-invasive peroral (through the mouth), nasal, pneumonial (inhalation), and rectal routes. Many medications, however, can not be delivered using these routes because they might be susceptible to degradation or are not incorporated efficiently. For this reason many protein and peptide drugs have to be delivered by injection. For example, many immunizations are based on the delivery of protein drugs and are often done by injection. Pharmacology (in Greek: pharmacon is drug, and logos is science) is the study of how chemical substances interfere with living systems. ... A therapeutic effect is a consequence of a medical treatment, of any kind, the results of which are judged to be desirable and beneficial. ... This article is about modern humans. ... For other uses, see Animal (disambiguation). ... (adj. ... This article does not cite any references or sources. ... A representation of the 3D structure of myoglobin showing coloured alpha helices. ... Peptides (from the Greek πεπτος, digestible), are the family of short molecules formed from the linking, in a defined order, of various α-amino acids. ... An injection is a method of putting liquid into the body with a hollow needle and a syringe which is pierced through the skin to a sufficient depth for the material to be forced into the body. ... A child being immunized against polio. ...

Current efforts in the area of drug delivery include the development of targeted delivery in which the drug is only active in the target area of the body (for example, in cancerous tissues) and sustained release formulations in which the drug is released over a period of time in a controlled manner from a formulation. Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (where cancer cells are transported through the bloodstream or lymphatic system). ...

See also

• Drug
• Dosage form
• Route of administration
• Cell penetrating peptide
• PEGylation

For other uses, see Drug (disambiguation). ... In pharmacology and toxicology, a route of administration is the path by which a drug, fluid, poison or other substance is brought into contact with the body. ... Cell penetrating peptides (CPPs) are short polycationic sequences as found in the article by Simon. ... Polyethylene glycol PEGylation is the a process of covalent attachment of poly(ethylene glycol) polymer chains to another molecule, normally a drug or therapeutic protein. ...

References

2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 121st day of the year (122nd in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 121st day of the year (122nd in leap years) in the Gregorian calendar. ...

External links

• The 9th US-Japan Symposium on Drug Delivery Systems
• Article in Chemical and Engineering News
• Drug Delivery News and Analysis
• Drug Delivery Reports
• Nanotechnology in Drug Delivery
• Drug Delivery Market
• Future of Drug Delivery Industry
• Drug Delivery Unmet Needs