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Current Drug Delivery
ISSN (Print): 1567-2018
ISSN (Online): 1875-5704
Epub Full Text Article
DOI: 10.2174/1567201811666140115113127      Price:  $95

Penetration of Tamoxifen Citrate Loaded Ethosomes and Liposomes Across Human Skin: A Comparative Study with Confocal Laser Scanning Microscopy

Author(s): Khomendra Kumar Sarwa, Preeti K Suresh, Mithun Rudrapal and Vinod Kumar Verma
Tamoxifen citrate, an anti-estrogenic agent, has been used mainly in various dermatological disorders and breast cancer. At least three month therapy with tamoxifen citrate is essential to treat breast cancer, burn and scars but several adverse effects associated with oral therapy make the withdrawal rate rather high. Low aqueous solubility and long-term therapy place limitations on parenteral route. Ethosomal preparations for transdermal delivery appear attractive for long term tamoxifen citrate therapy. In the present study, ethosomal and liposomal formulations containing tamoxifen citrate were prepared and evaluated for their penetration properties in human cadaver skin using Franz diffusion cell and confocal scanning microscope (CLSM). The results clearly revealed that ethosomal vesicles showed a better drug permeation profile than that of liposomal vesicles. In addition, low fluorescence intensity in CLSM was recorded with liposomes as compared to ethosomes, indicating lower cumulative amount of drug permeation from liposomal vesicles. Furthermore, CLSM showed uniform fluorescence intensity across the entire depth of skin in ethosomal treatment, indicating high penetrability of ethosomal vesicles through human cadaver skin. In contrast, low penetrability of conventional liposomal vesicles was recorded as penetration was limited to the 7th section (i.e. upper epidermis layer) of skin as evident from visualization of intact liposomal vesicles in CLSM
CLSM, Ethosomes, Liposomes, Tamoxifen citrate
University Institute of Pharmacy, Pt. Ravishankar Shukla University Raipur, Chhattisgarh, India 492010