title: Systematic Development of Transethosomal Gel System of Piroxicam: Formulation Optimization, In Vitro Evaluation, and Ex Vivo Assessment.
abstract: Piroxicam is used in the treatment of rheumatoid arthritis, osteoarthritis, and other inflammatory diseases. Upon oral administration, it is reported to cause ulcerative colitis, gastrointestinal irritation, edema and peptic ulcer. Hence, an alternative delivery system has been designed in the form of transethosome. The present study describes the preparation, optimization, characterization, and ex vivo study of piroxicam-loaded transethosomal gel using the central composite design. On the basis of the prescreening study, the concentration of lipids and ethanol was kept in the range of 2-4% w/v and 0-40% v/v, respectively. Formulation was optimized by measuring drug retention in the skin, drug permeation, entrapment efficiency, and vesicle size. Optimized formulation was incorporated in hydrogel and compared with other analogous vesicular (liposomes, ethosomes, and transfersomes) gels for the aforementioned responses. Among the various lipids used, soya phosphatidylcholine (SPL 70) and ethanol in various percentages were found to affect drug retention in the skin, drug permeation, vesicle size, and entrapment efficiency. The optimized batch of transethosome has shown 392.730 μg cm-2drug retention in the skin, 44.312 μg cm-2h-1drug permeation, 68.434% entrapment efficiency, and 655.369 nm vesicle size, respectively. It was observed that the developed transethosomes were found superior in all the responses as compared to other vesicular formulations with improved stability and highest elasticity. Similar observations were noted with its gel formulation.
authors: School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
authors: Varun
authors: V
authors: Garg
authors: School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India. harmanpreetmadaan@gmail.com.
authors: Harmanpreet
authors: 0000-0003-0377-6528
authors: H
authors: Singh
authors: School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
authors: Amit
authors: A
authors: Bhatia
authors: Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandar Sindri, Dist., Ajmer, Rajasthan, 305817, India.
authors: Kaisar
authors: K
authors: Raza
authors: School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India.
authors: Sachin Kumar
authors: SK
authors: Singh
authors: University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160017, India.
authors: Bhupinder
authors: B
authors: Singh
authors: University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160017, India.
authors: Sarwar
authors: S
authors: Beg
mesh_terms: D000279:Administration, Cutaneous; D000818:Animals; D002626:Chemistry, Pharmaceutical / Q000379:methods; D004337:Drug Carriers / Q000737:chemistry; D016503:Drug Delivery Systems / Q000379:methods; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000008:administration & dosage / Q000737:chemistry*; D008081:Liposomes / Q000008:administration & dosage / Q000737:chemistry; D010316:Particle Size; D010539:Permeability; D010894:Piroxicam / Q000008:administration & dosage / Q000737:chemistry*; D012867:Skin / Q000378:metabolism*; D012869:Skin Absorption; D013552:Swine
chemical_list: D004337:Drug Carriers; D008081:Liposomes; D010894:Piroxicam; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate
keywords: elastic vesicles; entrapment efficiency; ethosome; experimental design; liposome; permeability; transethosome; transfersome