Abstract
Topical administration is an appealing method for drug delivery due to its non-invasiveness, selfcontrolled application, avoidance of first-pass metabolism in the liver and reduction of systemic side effects compared to other conventional routes such as oral and parenteral. However, topical administration must overcome the permeable barriers that skin and mucosa represent for the drug to achieve its desired therapeutic effect.
Penetration of drugs through human skin is mainly impaired by the stratum corneum— the uppermost keratinized skin layer. In contrast, the stratified squamous epithelium (a nonkeratinized tissue) represents the major physical barrier for transbuccal drug administration in humans.
Different technologies have been studied to enhance the bioavailability or local effects of drugs administered through skin and buccal mucosa. Those technologies involve the use of physical or chemical enhancers and new dosage forms such as vesicles, cyclodextrins, nanoparticles and other complex systems. Combinations of these technologies may further increase drug delivery in some cases.
As analgesia is one of the main therapeutic effects sought through topical administration, this paper focuses on the review of drug delivery systems to improve the topical and transdermal/transbuccal drug delivery of substances with known analgesic action. A discussion of their possibilities and limitations is also included.
Keywords: Analgesia, drug delivery systems, mucosa, permeation enhancement, skin, transbuccal drug delivery, transdermal drug delivery.
Current Pharmaceutical Design
Title:Enhancing Topical Analgesic Administration: Review and Prospect for Transdermal and Transbuccal Drug Delivery Systems
Volume: 21 Issue: 20
Author(s): Roser Sanz, Ana C. Calpena, Mireia Mallandrich and Beatriz Clares
Affiliation:
Keywords: Analgesia, drug delivery systems, mucosa, permeation enhancement, skin, transbuccal drug delivery, transdermal drug delivery.
Abstract: Topical administration is an appealing method for drug delivery due to its non-invasiveness, selfcontrolled application, avoidance of first-pass metabolism in the liver and reduction of systemic side effects compared to other conventional routes such as oral and parenteral. However, topical administration must overcome the permeable barriers that skin and mucosa represent for the drug to achieve its desired therapeutic effect.
Penetration of drugs through human skin is mainly impaired by the stratum corneum— the uppermost keratinized skin layer. In contrast, the stratified squamous epithelium (a nonkeratinized tissue) represents the major physical barrier for transbuccal drug administration in humans.
Different technologies have been studied to enhance the bioavailability or local effects of drugs administered through skin and buccal mucosa. Those technologies involve the use of physical or chemical enhancers and new dosage forms such as vesicles, cyclodextrins, nanoparticles and other complex systems. Combinations of these technologies may further increase drug delivery in some cases.
As analgesia is one of the main therapeutic effects sought through topical administration, this paper focuses on the review of drug delivery systems to improve the topical and transdermal/transbuccal drug delivery of substances with known analgesic action. A discussion of their possibilities and limitations is also included.
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Cite this article as:
Sanz Roser, Calpena C. Ana, Mallandrich Mireia and Clares Beatriz, Enhancing Topical Analgesic Administration: Review and Prospect for Transdermal and Transbuccal Drug Delivery Systems, Current Pharmaceutical Design 2015; 21 (20) . https://dx.doi.org/10.2174/1381612821666150428145627
DOI https://dx.doi.org/10.2174/1381612821666150428145627 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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