Self nano emulsifying drug delivery system of ketoconazole for topical administration

2020 ◽  
Vol 10 (3-s) ◽  
pp. 262-270
Author(s):  
Ankita Arun Gorhe ◽  
Abhijeet Kulkarni ◽  
Kandalkar Pallavi ◽  
Jagtap Snehal

Silymarin is polyphenolic flavonoid obtained from the seeds of silybum marianum plant. It has various pharmacological properties such as hepatoprotective, anti-inflammatory, antioxidant, anti-carcinogenic, hypolipidemic properties. Silymarin has recently reported to be neuroprotective agent against neurodegenerative disease such as Alzheimer, Parkinson’s and cerebral ischemia. It contains eight active components, among which silibinin is the most active component. However, silymarin is BCS class II drug which having poor bioavailability due to extensive phase II metabolism, poor aqueous solubility, low permeability across intestinal epithelial cells and rapid excretion in bile and urine.  Therefore, it is necessary to understand all formulations and analytical aspects including all possible future prospects. In this review a potential approach to enhance solubility, bioavailability and to develop a robust formulation is studied. The number of studies describes novel drug delivery system (NDDS) based formulations have been significantly increased. The raise in novel drug delivery exploitation is essentially due to defeated barriers within technological process of lipid based nanoparticles formulations and increased knowledge of underlying mechanisms of transport of NDDS via different route of administration. This review focuses on pharmacological properties of silymarin, challenges, benefits and application of novel drug delivery system. To reduce the adverse effects and toxicities novel drug delivery will be an attractive approach of current therapies. Keywords: Silymarin, route of administration, novel drug delivery, bioavailability, solubility


2018 ◽  
Vol 10 (4) ◽  
pp. 1 ◽  
Author(s):  
Himangshu Bhowmik ◽  
D. Nagasamy Venkatesh ◽  
Anuttam Kuila ◽  
Kammari Harish Kumar

The recent advance in nanotechnology has lead to the development of targeted drug delivery system. However, targeting a molecule to a particular site using a drug delivery system effectively requires a specialized drug delivery system. The discovery of nanosponge has become a significant step in overcoming certain problems such as drug toxicity, poor bioavailability and release of drug in a predictable fashion as they can accommodate both hydrophilic and hydrophobic drug. Nanosponges exhibit a porous structure in nature which has the unique ability to entrap the drug moieties and offers a merit of desire release. Nanosponges are tiny sponges that can circulate in the body to reach the specific site and binds on the surface to release the drug in a controlled and predictable manner. Nanosponges can be formulated by crosslinking of cyclodextrine with carbonyl or di-carboxylate (Crosslinkers). Nano sponge’s technology has been explored widely for the delivery of drugs for oral administration, topical administration, and parental administration. Nanosponges can also serve as an effective carrier for enzyme, proteins, vaccine and antibodies. The present review highlights the method of preparation, characterization and their potential application in drug delivery system.


Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
AR Bilia ◽  
G Capecchi ◽  
MC Salvatici ◽  
B Isacchi ◽  
MC Bergonzi

Author(s):  
ShirishaG. Suddala ◽  
S. K. Sahoo ◽  
M. R. Yamsani

Objective: The objective of this research work was to develop and evaluate the floating– pulsatile drug delivery system (FPDDS) of meloxicam intended for Chrono pharmacotherapy of rheumatoid arthritis. Methods: The system consisting of drug containing core, coated with hydrophilic erodible polymer, which is responsible for a lag phase for pulsatile release, top cover buoyant layer was prepared with HPMC K4M and sodium bicarbonate, provides buoyancy to increase retention of the oral dosage form in the stomach. Meloxicam is a COX-2 inhibitor used to treat joint diseases such as osteoarthritis and rheumatoid arthritis. For rheumatoid arthritis Chrono pharmacotherapy has been recommended to ensure that the highest blood levels of the drug coincide with peak pain and stiffness. Result and discussion: The prepared tablets were characterized and found to exhibit satisfactory physico-chemical characteristics. Hence, the main objective of present work is to formulate FPDDS of meloxicam in order to achieve drug release after pre-determined lag phase. Developed formulations were evaluated for in vitro drug release studies, water uptake and erosion studies, floating behaviour and in vivo radiology studies. Results showed that a certain lag time before drug release which was due to the erosion of the hydrophilic erodible polymer. The lag time clearly depends on the type and amount of hydrophilic polymer which was applied on the inner cores. Floating time and floating lag time was controlled by quantity and composition of buoyant layer. In vivo radiology studies point out the capability of the system of longer residence time of the tablets in the gastric region and releasing the drug after a programmed lag time. Conclusion: The optimized formulation of the developed system provided a lag phase while showing the gastroretension followed by pulsatile drug release that would be beneficial for chronotherapy of rheumatoid arthritis and osteoarthritis.


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