Self-nanoemulsifying drug delivery system of cefpodoxime proxetil containing tocopherol polyethylene glycol succinate.
Summary of "Self-nanoemulsifying drug delivery system of cefpodoxime proxetil containing tocopherol polyethylene glycol succinate."
Context:â€‚Lipid based drug delivery systems have gained prominence in last decade for drugs with dissolution rate limited oral bioavailability. Objective:â€‚To improve the solubility, permeability and oral bioavailability of cefpodoxime proxetil, Î²-lactam antibiotic. It is BCS Class IV drug having solubility 400 Âµg/mL and 50% oral bioavailability. Materials and methods:â€‚Self-nanoemulsifying drug delivery system (SNEDDS) using various surfactant and cosurfactants such as tween 80, tocopheryl polyethylene glycol succinate (TPGS), propylene glycol and Capmul MCM as oil phase were prepared. Ternary phase diagrams were constructed to identify stable microemulsion region. Percent transmittance studies helped to shortlist the surfactant-cosurfactant combination. Results and discussion:â€‚Tween 80 and TPGS as surfactants and Capmul MCM as oil phase were found to produce stable nanoemulsions. Five formulations of SNEDDS had globule size of 55-60 nm and zeta potential of -4 to -11 mV. Self-emulsification time was between 221 and 370 s, while viscosity was dependent on composition of SNEDDS. Cloud point was above 70Â°C which indicated the retention of in vivo self-emulsifying properties. Average flux for cefpodoxime proxetil (CP) and SNEDDS was 0.104 and 0.985 Âµg/cm(2) min. Permeability was 19.72 and 206 for CP and SNEDDS. Liquid SNEDDS spray coated onto micropellets of microcrystalline cellulose (18-20#) were analysed by scanning electron microscope (SEM), self-emulsification and in vitro dissolution. A 5.36-fold increase in area under curve AUC(0-âˆž) was observed for CP-SNEDDS than plain drug. Minimum inhibitory concentration (MIC) was lower for SNEDDS. Liquid and SNEDDS micropellets were stable under accelerated conditions. Conclusion:â€‚SNEDDS formulations led to improved oral bioavailability due to enhanced solubilization of selected drug.
Department of Pharmaceutics, SVKM'S B.N. College of Pharmacy , Mumbai , India.
This article was published in the following journal.
Name: Drug development and industrial pharmacy
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22564007
- DOI: http://dx.doi.org/10.3109/03639045.2012.683440
The purpose of this work was to develop and characterize chitosan-alginate beads for the extended delivery of cefpodoxime proxetil (CFP), to understand the impact of formulation and process parameters...
Purpose: Recently the liquid nanoemulsifying drug delivery systems (SNEDDS) have shown dramatic effects on improving oral bioavailability of poorly soluble drugs. The main purpose of this study was to...
Abstract Today, âˆ¼74% of drugs are taken orally and are not found to be as effective as desired. To improve such characteristics, transdermal drug delivery was brought to existence. This delivery sys...
Transdermal drug delivery systems are topically administered medicaments in the form of patches that deliver drugs for systemic effects at a predetermined and controlled rate. It works very simply in ...
This is an overview of the current drug delivery systems (DDS) starting with various routes of drug administration. Various drug formulations are then described as well as devices used for drug delive...
The purpose of this study is to evaluate the safety and tolerability of a single iontophoretic dose of buffered solution administered through the EyeGateÂ® II Drug Delivery System in healt...
Urinary tract infection (UTI) is a very common problem in young healthy women, afflicting approximately one-half of women by their late 20s. One of the most common antibiotics used to trea...
The primary purpose of this study is to estimate the maximum tolerated dose of irinotecan with the use of cefpodoxime for pediatric solid tumor patients.
This study will evaluate the biodegradation of the brimonidine tartrate posterior segment drug delivery system.
In this multinational dose finding Phase IIb study the efficacy and safety of two doses of AP 12009 compared to standard chemotherapy (temozolomide or PCV) is investigated in adult patient...
Medical and Biotech [MESH] Definitions
Forms to which substances are incorporated to improve the delivery and the effectiveness of drugs. Drug carriers are used in drug-delivery systems such as the controlled-release technology to prolong in vivo drug actions, decrease drug metabolism, and reduce drug toxicity. Carriers are also used in designs to increase the effectiveness of drug delivery to the target sites of pharmacological actions. Liposomes, albumin microspheres, soluble synthetic polymers, DNA complexes, protein-drug conjugates, and carrier erythrocytes among others have been employed as biodegradable drug carriers.
Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.
Artificial, single or multilaminar vesicles (made from lecithins or other lipids) that are used for the delivery of a variety of biological molecules or molecular complexes to cells, for example, drug delivery and gene transfer. They are also used to study membranes and membrane proteins.
Economic aspects of the fields of pharmacy and pharmacology as they apply to the development and study of medical economics in rational drug therapy and the impact of pharmaceuticals on the cost of medical care. Pharmaceutical economics also includes the economic considerations of the pharmaceutical care delivery system and in drug prescribing, particularly of cost-benefit values. (From J Res Pharm Econ 1989;1(1); PharmacoEcon 1992;1(1))
The delivery of a drug into a fluid-filled cavity of the brain.