Transdermal and Topical Drug Delivery Systems

Author(s):  
Lena M. Thomas ◽  
Abeer H. Khasraghi

Dandruff and seborrheic dermatitis (SD) are common skin disorders affecting the scalp and extending to other body sites in the case of SD. They are associated with pruritus and scaling, causing an esthetical disturbance in the population affected.   Treatment of such conditions involves using a variety of drugs for long terms, thus optimizing drug formulation is essential to improve therapeutic efficacy and patient compliance. Conventional topical formulations like shampoos and creams have been widely used but their use is associated with disadvantages. To overcome such effects, novel topical nanotechnology-based formulations are currently under investigation. In the following article, we highlight recently published formulation approaches used to improve topical dandruff/SD therapy


2021 ◽  
Vol 22 (18) ◽  
pp. 9743
Author(s):  
Eliana B. Souto ◽  
Ana S. Macedo ◽  
João Dias-Ferreira ◽  
Amanda Cano ◽  
Aleksandra Zielińska ◽  
...  

Administration of active pharmaceutical ingredients (APIs) through the skin, by means of topical drug delivery systems, is an advanced therapeutic approach. As the skin is the largest organ of the human body, primarily acting as a natural protective barrier against permeation of xenobiotics, specific strategies to overcome this barrier are needed. Liposomes are nanometric-sized delivery systems composed of phospholipids, which are key components of cell membranes, making liposomes well tolerated and devoid of toxicity. As their lipid compositions are similar to those of the skin, liposomes are used as topical, dermal, and transdermal delivery systems. However, permeation of the first generation of liposomes through the skin posed some limitations; thus, a second generation of liposomes has emerged, overcoming permeability problems. Various mechanisms of permeation/penetration of elastic/ultra-deformable liposomes into the skin have been proposed; however, debate continues on their extent/mechanisms of permeation/penetration. In vivo bioavailability of an API administered in the form of ultra-deformable liposomes is similar to the bioavailability achieved when the same API is administered in the form of a solution by subcutaneous or epi-cutaneous injection, which demonstrates their applicability in transdermal drug delivery.


Author(s):  
Sahil Hasan ◽  
Saloni Bhandari ◽  
Anshu Sharma ◽  
Poonam Garg

Emulgel systems are currently attention to the pharmaceutical sectors because of their substantial potential to act as drug delivery vehicle by incorporating a broad range of drug molecules and higher stability compared to the other dosage form like cream, lotion, gel, etc. Emulsions are either available in an oil in water or water in oil type. These are prepared by the incorporation of the emulsion into the gel with constant stirring at a moderate speed. Incorporation of emulsion into a gel makes it a dual control release system, thereby, increasing its stability. It has better drug release if we compare to other topical drug delivery system. It is non greasy because of the presence of gel phase which enhances patient compliance. Gels has a major limitation for the delivery of hydrophobic drugs, so to overcome this limitation an emulsion based approach is being used so that even a hydrophobic therapeutic drug can enjoy the unique properties of gels. In recent years, these have also been a great interest in the use of novel polymers. These emulgels are having major advantages on vesicular drug delivery systems as well as on conventional systems in various aspects. Various permeation enhancers can enhance the effect; due to this emulgels can be used as better topical drug delivery systems over current drug delivery systems. The emulsion can be use for analgesics and antifungal drugs.


2016 ◽  
Vol 26 (2) ◽  
pp. 213-228 ◽  
Author(s):  
Deepinder Singh Malik ◽  
Neeraj Mital ◽  
Gurpreet Kaur

2013 ◽  
Vol 441 (1-2) ◽  
pp. 620-627 ◽  
Author(s):  
Dorota Dobler ◽  
Thomas Schmidts ◽  
Ines Klingenhöfer ◽  
Frank Runkel

2020 ◽  
Vol 11 (1) ◽  
pp. 368-385 ◽  
Author(s):  
Sharadha M ◽  
Gowda D V ◽  
Vishal Gupta N ◽  
Akhila A R

The paper reviews an overview of a conventional and novel approach in the topical drug delivery system. Drug delivery via the skin is becoming progressively popular due to its convenience and affordability. The skin is the most important mechanical barrier to the penetration of many drug substances and acts as an ideal site to deliver the drug both locally and systemically. The topical route has been a favored route of drug administration over the last decades. Despite conventional topical drug delivery systems limits in poor retention and low bioavailability. This drawback overcomes by extensive research to develop a novel topical drug delivery systems targeting to improve the safety, efficacy and to minimize side effects. The conventional review focuses on dusting powders, poultices, plasters, lotion, liniments, solution, emulsion, suspension, colloidions, tinctures, creams, gels, ointments, pastes, suppositories, transdermal delivery systems, tapes, and gauzes and rubbing alcohol while the novel review focuses on novel gels, aerosol foams, microsponges, muco-adhesive bio-adhesives, novel vesicular carriers, nano-emulsion & nano-emulgel, protein and peptide delivery, polymers, emulsifier-free formulations and fullerenes etc. The key purpose of a topical delivery system is to enhance the skin permeability and to retain in the dermis. This review addresses a basis for further advancement and up-gradation of current techniques and technologies.


2020 ◽  
Vol 186 ◽  
pp. 113295 ◽  
Author(s):  
Maria Chiara Cristiano ◽  
Francesca Froiio ◽  
Antonia Mancuso ◽  
Michelangelo Iannone ◽  
Massimo Fresta ◽  
...  

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