scholarly journals QbD-Based Development and Evaluation of Time-dependent Chronopharmaceutical Drug Delivery System of Amoxicillin Trihydrate for Management of Bacterial Infection

2018 ◽  
Vol 10 (03) ◽  
Author(s):  
Shyam Narayan Prasad ◽  
Ashok Kumar Sahoo ◽  
Abhijit V. Gothoskar
Keyword(s):  
Drug Delivery ◽  
Bacterial Infection ◽  
Drug Delivery System ◽  
Delivery System ◽  
Bacterial Infections ◽  
Release Kinetics ◽  
Matrix Tablets ◽  
Critical Material ◽  
Amoxicillin Trihydrate

The present studies discuss about the quality by design (QbD)-based development and evaluation of chronomodulated release drug delivery system of amoxicillin trihydrate for management of bacterial infection. Initially, target product profile was defined and critical quality attributes were earmarked. Risk assessment study was performed for identifying the critical material attributes. Preformulation studies were carried out, and direct compression method was employed for the preparation of bilayer matrix tablets containing a delayed and a sustained release layer for preliminary optimization. Systematic formulation optimization was carried out using central composite design by selecting the concentration of Eudragit-L100 D55 and HPMCK4M. Mathematical modeling was performed and optimized compositions of the polymers were identified from the design space. Moreover, the prepared bilayer tablets were evaluated for various tablet properties including in vitro drug release study, release kinetics evaluation and characterized for FTIR, DSC, XRD, SEM studies, in vitro was-off test, antimicrobial assay and accelerated stability studies. In a nutshell, the present studies indicated the supremacy of designing a chronomodulated release bilayer tablet formulations of amoxicillin trihydrate for effective management of bacterial infections.

scholarly journals Development of Bioadhesive Chitosan Superporous Hydrogel Composite Particles Based Intestinal Drug Delivery System

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Hitesh Chavda ◽  
Ishan Modhia ◽  
Anant Mehta ◽  
Rupal Patel ◽  
Chhagan Patel
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Transport ◽  
Release Kinetics ◽  
Hydrogel Composite ◽  
Intestinal Delivery ◽  
Superporous Hydrogel

Bioadhesive superporous hydrogel composite (SPHC) particles were developed for an intestinal delivery of metoprolol succinate and characterized for density, porosity, swelling, morphology, and bioadhesion studies. Chitosan and HPMC were used as bioadhesive and release retardant polymers, respectively. A 32full factorial design was applied to optimize the concentration of chitosan and HPMC. The drug loaded bioadhesive SPHC particles were filled in capsule, and the capsule was coated with cellulose acetate phthalate and evaluated for drug content,in vitrodrug release, and stability studies. To ascertain the drug release kinetics, the drug release profiles were fitted for mathematical models. The prepared system remains bioadhesive up to eight hours in intestine and showed Hixson-Crowell release with anomalous nonfickian type of drug transport. The application of SPHC polymer particles as a biomaterial carrier opens a new insight into bioadhesive drug delivery system and could be a future platform for other molecules for intestinal delivery.

scholarly journals PREPARATION AND CHARACTERIZATION OF SELF NANO EMULSIFYING DRUG DELIVERY SYSTEM CONTAINING ANTI-HYPERTENSIVE DRUG’’

2020 ◽  
Vol 9 (4) ◽  
Author(s):  
Anukumar E ◽  
Nagaraja T S ◽  
Yogananda R ◽  
Bharathi D R
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Release Kinetics ◽  
Stability Studies ◽  
In Vitro Drug Release ◽  
Hypertensive Drug

The present work is to prepare and characterization of self nano emulsifying drug delivery system containing Anti-hypertensive drug. Losartan is a competitive antagonist and inverse agonist of angiotensin 2 receptor. The SNEDDS is prepared by Sonication method using a components of SPAN 60/Eudragit RS 100 as a surfactant, PVA as a Co-surfactant, Iso propyl alcohol as a solvent and DCM as a co-solvent. The prepared SNEDDS was evaluated for Fourier transform infrared spectroscopy, Surface morphology, particle size, zeta potential,  drug entrapment efficiency, visual assessment, self-emulsification time, Robustness to dilution, in-vitro drug release and short term stability studies. The in-vitro drug release data of all the formulations were found to be zero order over a period of 24 h and Formulation F7 shows good results for the drug release kinetics as controlled release. The stability studies data was found that there was no such difference in drug EE and in-vitro drug release.

scholarly journals Formulation Development, Characterization and In-vitro Evaluation of Tamoxifen Loaded Liposomes

2020 ◽  
pp. 64-82
Author(s):  
Md. Mazed Hasan ◽  
Md. Hamiduzzaman ◽  
Ishrat Jahan ◽  
A. H. M. Nazmul Hasan ◽  
Md. Asaduzzaman
Keyword(s):  
Drug Delivery ◽  
Controlled Release ◽  
Side Effects ◽  
Cancer Treatment ◽  
Drug Delivery System ◽  
Delivery System ◽  
Ex Vivo ◽  
Release Kinetics ◽  
Formulation Development

Background: The study was aimed to prepare and evaluate tamoxifen loaded controlled release liposomes to reduce the side effects of tamoxifen during cancer treatment.  Methods: Different tamoxifen loaded liposomes were prepared by modified ether injection (MEIM) and thin film hydration method (TFHM) under prescribed conditions. The prepared liposomes were characterized by using optical microscopy, evaluating encapsulation efficiency, in-vitro and ex-vivo diffusion studies by using dialysis membrane and chicken intestinal sac respectively. Results: The data revealed that all of the liposomes were spherical in shape and stable under three physical conditions i.e. 4, 25 and 37 ± 2°C temperatures and 60 ±5% relative humidity. Additionally most of the liposomes followed zero order and class II release kinetics. It was also observed that with the increase of phospholipids and cholesterol, entrapment efficiency of liposome vesicles increased thus giving a controlled release drug delivery system but further increase reduced this efficiency at a certain level. Conclusion: The formulated control release liposomes might be a good drug delivery system for target oriented drug delivery with minimum side effects of tamoxifen during cancer treatment.

scholarly journals FORMULATION AND EVALUATION OF GASTRO RETENTIVE DRUG DELIVERY SYSTEM OF ZANAMIVIR USING DIFFERENT POLYMERS

2019 ◽  
Vol 8 (4) ◽  
Author(s):  
V. Vijaya Kumar ◽  
B. Deekshi Gladiola ◽  
C. Madhusudhana Chetty ◽  
R. E. Ugandar
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Guar Gum ◽  
Release Kinetics ◽  
Methyl Cellulose ◽  
Floating Tablets ◽  
Floating Tablet ◽  
Gastro Retentive

The objective of the present study is to develop gastro retentive drug delivery system of Zanamivir .Floating tablets of Zanamivir were developed with a gas generating agent NaHCO3 and in combination of different hydrophobic and hydrophilic polymers like xanthan gum, guar gum, HPMC and methyl cellulose .In the present work attempts have been made to prepare six formulations of Zanamivir in different ratios of drug and polymer to get a desired release profile by direct compression method .All the prepared tablets were evaluated in terms of pre compression and post compression parameters. FTIR studies revealed the absence of drug polymer interactions .Among all the formulations F5 Showed 97.4% of in vitro drug release for 10 hours and hence formulation F5 is selected as an optimized formulation. The optimized formulation F5 was found to follow Higuchi release kinetics and zero order. Further formulation F5 was subjected to accelerated stability studies for 3 months. It showed that the optimized formulation was intact without any interactions. Finally the optimized formulation F5 complying with all properties of floating tablets was found to be satisfactory Keywords: Zanamivir, floating tablet, natural gums, sodium bicarbonate, gastro retentive drug delivery systems

RESEALED ERYTHROCYTES: A PROMISING APPROACH TO ENHANCE EFFICACY OF ANTICANCER DRUGS

INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (03) ◽  
pp. 9-20
Author(s):  
◽  
Prathibha Salve ◽  
Rajendra Doijad ◽  
Niranjan Chivate
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Anticancer Drugs ◽  
Delivery System ◽  
Release Kinetics ◽  
Drug Loading ◽  
The Body ◽  
Zero Order Release

Targeted drug delivery system is a potential drug delivery system which delivers the drug to particular organ of interest only. This improves the therapeutic efficacy of the treatment by reducing the side effects of drug which are required in case of anticancer drugs. Erythrocytes have been the most interesting carrier and have found to possess great potential in drug targeting. Resealed erythrocytes are gaining more popularity because of their ability to circulate throughout the body, biocompatibility, zero order release kinetics, reproducibility and ease of preparation. In this review, we have made an attempt to understand the process in detail to prepare resealed erythrocytes, including its mechanism, source and isolation of erythrocytes, methods of drug loading, in vivo and in vitro characterization of resealed erythrocytes, with special emphasis on applications of resealed erythrocytes for cancer treatment. With this review we can conclude that resealed erythrocyte is a promising approach to enhance efficacy of anticancer drugs.

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