Preparation and Performance of Controlled-Release Tablets of Sasanquasaponin-Sodium Alginate-Hydroxypropyl Methyl Cellulose

2014 ◽  
Vol 884-885 ◽  
pp. 494-497
Author(s):  
Xiao Zhou Liu ◽  
Xiao Zhen Liu ◽  
Zhong Fang Lai ◽  
Yue Xing Song ◽  
Li Zhai
Keyword(s):  
Controlled Release ◽  
Sodium Alginate ◽  
Release Rate ◽  
Preparation Method ◽  
Methyl Cellulose ◽  
Zero Order ◽  
Chemical Bonds ◽  
Hydroxypropyl Methyl Cellulose ◽  
And Performance ◽  
Controlled Release Tablets

The controlled-release tablets of sasanquasaponin-sodium alginate-hydroxy-propyl methyl cellulose (SQS-SAL-HPMC) were prepared by using SQS, SAL and HPMC as the main drug and accessories. The effects of the preparation method of the controlled-release powder and the amount of ethanol on release rate respectively were studied. The release rate curve of the data of the prescription of the controlled-release tablets of SQS-SAL-HPMC were fitted as zero order, one order and Higuchi equation. The controlled-release tablet of SQS-SAL-HPMC was characterized by IR techniques. The releasing rate of the controlled-release tablets of SQS-SAL-HPMC are controlled by controlling the preparation method of the controlled-release powder and the amount of ethanol. The controlled- release tablets of SQS-SAL-HPMC release SQS by slowness and constant in 12h. The chemical bonds are formed among SQS, SAL and HPMC.

Preparation of Controlled-Release Tablets of Sasanquasaponin

2011 ◽  
Vol 396-398 ◽  
pp. 1684-1687
Author(s):  
Xiao Zhen Liu ◽  
Ju Hua Yang ◽  
Zhong Fang Lai ◽  
Ling Ling Guo ◽  
Ling Ling Song ◽  
...  
Keyword(s):  
Controlled Release ◽  
Release Rate ◽  
Methyl Cellulose ◽  
Zero Order ◽  
Rate Curve ◽  
Hydroxypropyl Methyl Cellulose ◽  
Controlled Release Tablets

he controlled-release tablets of sasanquasaponin (SQS) were prepared by using SQS, hydroxypropyl methyl cellulose, ethylcellulose and lactose as the main drug, skeleton material and fillers, respectively. The effects of the dosage of hydroxypropyl methyl cellulose and ethylcellulose on release rate were studied. The release rate curve of the data of the prescription of the controlled-release tablets of SQS were fitted as zero order, one order and Higuchi equation. The release rate of the controlled-release tablets of SQS were controlled by controlling the dosage of hydroxypropyl methyl cellulose and ethylcellulose. The influence of the dosage of hydroxypropyl methyl cellulose on release rate of the controlled-release tablets of SQS was the biggest factor. The prescription of the controlled-release tablets of SQS contains in each piece: SQS 200mg, hydroxypropyl methyl cellulose 40mg, ethylcellulose 30mg, lactose 30mg. The controlled-release tablets of SQS release SQS by slowness and constant in 12h.

Preparation and Performance of Controlled-Release Tablets of Sasanquasaponin

2011 ◽  
Vol 415-417 ◽  
pp. 1713-1716
Author(s):  
Xiao Zhen Liu ◽  
Liang Wei Zhu ◽  
Zhong Fang Lai ◽  
Ling Ling Guo ◽  
Ling Ling Song ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Particle Size ◽  
Controlled Release ◽  
Release Rate ◽  
Chemical Bonds ◽  
And Performance ◽  
Controlled Release Tablets ◽  
Release Tablet

The controlled-release tablets of sasanquasaponin (SQS) were prepared by using SQS, cornstalk and chitosan as the main drug and accessories. The effect of the particle size of cornstalk on release rate was studied. The thermal stability and wet stability of the controlled-release tablets of SQS were investigated. The controlled-release tablet of SQS was characterized by IR techniques. The releasing rate of the controlled-release tablets of SQS are controlled by controlling the particle size of cornstalk. The thermal stability and wet stability of the controlled-release tablets of SQS are good. The chemical bonds are formed among SQS, cornstalk and chitosan.

scholarly journals DEVELOPMENT AND CHARACTERIZATION OF CONTROLLED RELEASE FAMOTIDINE MATRIX TABLETS CONTAINING COMPLEXES

2017 ◽  
Vol 9 (4) ◽  
pp. 38
Author(s):  
Shabnam Ain ◽  
Babita Kumar ◽  
Kamla Pathak
Keyword(s):  
Controlled Release ◽  
Polymer Blend ◽  
Release Kinetics ◽  
Methyl Cellulose ◽  
Zero Order ◽  
Matrix Tablets ◽  
Release Mechanism ◽  
Matrix Tablet ◽  
Cyclodextrin Complex ◽  
Controlled Release Tablets

Objective: The aim of the present study was to formulate the controlled release (CR) tablets of famotidine-cyclodextrin complexes to make the feasibility of complex in CR tablets and to access the kinetic of drug release mechanismMethods: In this work the solubility study of famotidine was performed in various solvents like 0.1 N HCl, phosphate buffer pH 7.4 and distilled water. Enhancement of the solubility and dissolution rate of famotidine was done by complexation with cyclodextrin before formulation into controlled release tablets. Tablets were prepared in different batches by using different concentration of HPMC K15M (hydroxy propyl methyl cellulose) and EC (ethyl cellulose) polymers and polymer blend. All batches were evaluated for pre-compression and post-compression parameters. Release kinetics was analyzed using zero order, first order, higuchi, peppas and hixon-crowell model.Results: All the formulation showed compliance with Pharmacopoeial standards. Release studies indicated that polymer blend (62%HPMCK15M and 38%EC) based matrix tablets with complexed drug was able to control the release of famotidine up to 12 h. Optimized formulation F13 containing complexed drug with same polymer blend showed zero order release and the release mechanism was predominant matrix swelling with erosion.Conclusion: Results of the present study demonstrated that the drug: β-cyclodextrin complex would be a suitable candidate for preparing controlled release tablets of famotidine to improve drug solubility, flow properties and compressibility. Thus the complex used in matrix tablet is a promising approach to achieve appropriate controlled release dosage.

Preparation of Controlled-Release Tablets of Sasanquasaponin Using Broomcorn-Stalk and its Performance

2011 ◽  
Vol 413 ◽  
pp. 304-307 ◽  
Author(s):  
Xiao Zhen Liu ◽  
Yue Xing Song ◽  
Zhong Fang Lai ◽  
Ling Ling Guo ◽  
Ling Ling Song
Keyword(s):  
Thermal Stability ◽  
Particle Size ◽  
Absorption Spectrum ◽  
Controlled Release ◽  
Infrared Absorption ◽  
Release Rate ◽  
Infrared Absorption Spectrum ◽  
Chemical Bonds ◽  
Kinetics Equation ◽  
Controlled Release Tablets

The controlled-release tablets of sasanquasaponin (SQS) were prepared by using SQS, broomcorn-stalk and lactose as the main drug and accessories. The effect of the particle size of broomcorn-stalk on release rate was studied. Kinetics equation of the controlled-release tablets of SQS releasing SQS was fitted. The thermal stability and wet stability of the controlled-release tablets of SQS were investigated. The controlled-release tablet of SQS was characterized by infrared absorption spectrum (IR) techniques. The releasing rate of the controlled-release tablets of SQS were controlled by controlling the particle size of broomcorn-stalk. Release speeds of the controlled-release tablets of SQS releasing SQS were constant. The thermal stability and wet stability of the controlled-release tablets of SQS were good. The chemical bonds were formed among SQS, broomcorn-stalk and lactose.

Formulation Development and Characterization of controlled release core in cup matrix tablets of venlafaxine HCl

2020 ◽  
Vol 15 ◽  
Author(s):  
Balaji Maddiboyina ◽  
Vikas Jhawat ◽  
Gandhi Sivaraman ◽  
Om Prakash Sunnapu ◽  
Ramya Krishna Nakkala ◽  
...  
Keyword(s):  
Controlled Release ◽  
Drug Release ◽  
Release Rate ◽  
Zero Order ◽  
Water Soluble ◽  
Matrix Tablets ◽  
Drug Dissolution ◽  
Crystalline Cellulose ◽  
Hydrophobic Polymers

Background: Venlafaxine HCl is a selective serotonin reuptake inhibitor which is given in the treatment of depression. The delivery of the drug at a controlled rate can be of great importance for prolonged effect. Objective: The objective was to prepare and optimize the controlled release core in cup matrix tablet of venlafaxine HCl using the combination of hydrophilic and hydrophobic polymers to prolong the effect with rate controlled drug release. Methods: The controlled release core in cup matrix tablets of venlafaxine HCl were prepared using HPMC K5, K4, K15, HCO, IPA, aerosol, magnesium sterate, hydrogenated castor oil and micro crystalline cellulose PVOK-900 using wet granulation technique. Total ten formulations with varying concentrations of polymers were prepared and evaluated for different physicochemical parameters such FTIR analysis for drug identification, In-vitro drug dissolution study was performed to evaluate the amount of drug release in 24 hrs, drug release kinetics study was performed to fit the data in zero order, first order, Hixson–crowell and Higuchi equation to determine the mechanism of drug release and stability studies for 3 months as observed. Results: The results of hardness, thickness, weight variation, friability and drug content study were in acceptable range for all formulations. Based on the In vitro dissolution profile, formulation F-9 was considered to be the optimized extending the release of 98.32% of drug up to 24 hrs. The data fitting study showed that the optimized formulation followed the zero order release rate kinetics and also compared with innovator product (flavix XR) showed better drug release profile. Conclusion: The core-in-cup technology has a potential to control the release rate of freely water soluble drugs for single administration per day by optimization with combined use of hydrophilic and hydrophobic polymers.

Synthesis and Evaluation of Starch – Urea – Borate as Rate Controlling Matrix for Controlled Release

1970 ◽  
Vol 1 (2) ◽  
pp. 167-170
Author(s):  
Chowdary KPR ◽  
Murali Krishna MN
Keyword(s):  
Controlled Release ◽  
Release Rate ◽  
Guar Gum ◽  
Matrix Tablets ◽  
Fickian Diffusion ◽  
Release Mechanism ◽  
Drug Release Mechanism ◽  
Zero Order Kinetics ◽  
Diffusion Controlled ◽  
Controlled Release Tablets

The objective of the present investigation is to synthesize starch – urea – borate, a new starch based polymer and to evaluate its application in the design of controlled release matrix tablets of diclofenac and gliclazide. The release rate controlling efficiency of starch – urea – borate was also compared with that of known polymers. Starch – urea – borate (SUB) polymer was synthesized by gelatinization of starch in the presence of urea and borax. Matrix tablets of diclofenac (100 mg) and gliclazide (60 mg) were formulated employing starch – urea – borate polymer in different proportions of drug and polymer and the tablets were evaluated. With both diclofenac and gliclazide, release from the formulated matrix tablets was slow and spread over 24 h and depended on percent polymer in the tablet. Release was diffusion controlled and followed zero order kinetics. Non – fickian diffusion was the drug release mechanism from the formulated tablets. Diclofenac release from matrix tablets formulated employing 33 % SUB (DF3) and Gliclazide release from matrix tablets formulated employing 50 % SUB (GF4) was similar to that from the corresponding commercial SR tablets. Starch – urea – borate polymer was found suitable for the design of oral controlled release tablets of diclofenac and gliclazide. The order of increasing release rate controlling efficiency with various polymers was ethyl cellulose = guar gum > SUB > sodium CMC > HPMC. Starch – urea – borate is a better release rate controlling polymer than HPMC and sodium CMC for obtaining controlled release over    24 hours.

Sign in / Sign up

Export Citation Format

Share Document