Transdermal Delivery of Acyclovir Sodium Via Carbopol Gels: Role of Chemical Permeation Enhancers

2011 ◽  
Vol 8 (4) ◽  
pp. 381-389 ◽  
Author(s):  
Raju Jukanti ◽  
Ashok Mateti ◽  
Suresh Bandari ◽  
Prabhakar R Veerareddy
Author(s):  
Y Madhusudan Rao ◽  
Gayatri P ◽  
Ajitha M ◽  
P. Pavan Kumar ◽  
Kiran kumar

Present investigation comprises the study of ex-vivo skin flux and in-vivo pharmacokinetics of Thiocolchicoside (THC) from transdermal films. The films were fabricated by solvent casting technique employing combination of hydrophilic and hydrophobic polymers. A flux of 18.08 µg/cm2h and 13.37µg/cm2h was achieved for optimized formulations containing 1, 8-cineole and oleic acid respectively as permeation enhancers. The observed flux values were higher when compared to passive control (8.66 µg/cm2h). Highest skin permeation was observed when 1,8-cineole was used as chemical permeation enhancer and it considerably (2-2.5 fold) improved the THC transport across the rat skin. In vivo studies were performed in rabbits and samples were analysed by LC-MS-MS. The mean area under the curve (AUC) values of transdermal film showed about 2.35 times statistically significant (p<0.05) improvement in bioavailability when compared with the oral administration of THC solution. The developed transdermal therapeutic systems using chemical permeation enhancers were suitable for drugs like THC in effective management of muscular pain.    


Marine Drugs ◽  
2018 ◽  
Vol 16 (10) ◽  
pp. 352 ◽  
Author(s):  
Daria Melnikova ◽  
Yuri Khotimchenko ◽  
Timur Magarlamov

This review is devoted to the medical application of tetrodotoxin (TTX), a potent non-protein specific blocker of voltage-gated sodium (NaV) channels. The selectivity of action, lack of affinity with the heart muscle NaV channels, and the inability to penetrate the blood–brain barrier make this toxin an attractive candidate for anesthetic and analgesic drug design. The efficacy of TTX was shown in neuropathic, acute and inflammatory pain models. The main emphasis of the review is on studies focused on the improvement of TTX efficacy and safety in conjunction with additional substances and drug delivery systems. A significant improvement in the effectiveness of the toxin was demonstrated when used in tandem with vasoconstrictors, local anesthetics and chemical permeation enhancers, with the best results obtained with the encapsulation of TTX in microparticles and liposomes conjugated to gold nanorods.


Pharmaceutics ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 339 ◽  
Author(s):  
Maher ◽  
Casettari ◽  
Illum

Drug delivery systems that safely and consistently improve transport of poorly absorbed compounds across epithelial barriers are highly sought within the drug delivery field. The use of chemical permeation enhancers is one of the simplest and widely tested approaches to improve transmucosal permeability via oral, nasal, buccal, ocular and pulmonary routes. To date, only a small number of permeation enhancers have progressed to clinical trials, and only one product that includes a permeation enhancer has reached the pharmaceutical market. This editorial is an introduction to the special issue entitled Transmucosal Absorption Enhancers in the Drug Delivery Field (https://www.mdpi.com/journal/pharmaceutics/special_issues/transmucosal_absorption_enhancers). The guest editors outline the scope of the issue, reflect on the results and the conclusions of the 19 articles published in the issue and provide an outlook on the use of permeation enhancers in the drug delivery field.


2013 ◽  
Vol 10 (6) ◽  
pp. 2248-2260 ◽  
Author(s):  
Shadi H. Moghadam ◽  
Evi Saliaj ◽  
Shawn D. Wettig ◽  
Chilbert Dong ◽  
Marina V. Ivanova ◽  
...  

2011 ◽  
Vol 35 (2) ◽  
pp. 199-207 ◽  
Author(s):  
Xiao-yan Xue ◽  
Ying Zhou ◽  
Ying-ying Chen ◽  
Jing-ru Meng ◽  
Min Jia ◽  
...  

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