About Authors:
K.S.Khatri
S.K.Patel education and research, Kherva,
Mehasana-384001
kkhatri_pharm@yahoo.com
Abstract:
Interest in transdermal drug delivery systems has increased on several fronts over the past several years because of the inherent advantages over the oral delivery such as the avoidance of gastrointestinal absorption, enzymatic and pH associated deactivation. Stratum corneum forms highly lipophilic membrane and provides the greatest resistance to penetration of drugs. A number of chemical and physical permeation enhancement techniques have been investigated. Chemical enhancers represent the most widely studied approach to transdermal drug permeation enhancement but are associated with toxicity, therefore limiting their clinical application. In recent years the emergence of number of physical techniques has expanded the range of drugs that can be delivered transdermally. Promising new technologies involved in enhancing transdermal permeation are Abrasion, Electroporation, Sonophoresis/Phonophoresis, Pressure waves, Iontophoresis, Laser Radiation,Magnetophoresis, Microneedles, Needleless injection and many more. In the present reviewed tried to discuss alternate techniques of enhancing the transdermal transport.
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