Applicability of a New Modified Calcium Starch as Release Retarding Polymer: A Comparative Study | Chapter 10 | Novel Aspects on Pharmaceutical Research Vol. 6

 This phase evaluate the drug release retarding effectiveness of a newly modified vigor named calcium vigor, in comparison to famous polymers namely hydroxy propyl methyl hydrogen (HPMC), sodium carboxy methyl cellulose (sodium CMC), ethyl cellulose and olibanum paste. Controlled-release dosage forms have created significant progress in conditions of clinical efficacy and patient agreement. Drug release from the systems bear be at a asked rate, predictable and reproducible. Polymers, that are used as release retarding materials in the design of regulated-release dosage forms play a lively role in ruling the delivery of drug from these portion of drug or other consumable forms. Gliclazide (30 mg) matrix tablets were created utilizing calcium starch and the added polymers at a polymer content of 5%, and the tablets underwent experiment. All of the calcium starch- and other polymer-located matrix tablets moderately released gliclazide over a ending of 12 to 24 hours. The release mechanism each of the prepared matrix tablets was erect to follow non-fickian spread. The release of Gliclazide from the matrix tablets steal hydroxy propyl methyl cellulose, ethyl cellulose, sodium CMC, and olibanum wax was relatively smart, and it was finished in 12hrs. But forge tablets prepared accompanying calcium starch, gliclazide release was slow and spread over 24 hours. The drug release was comparatively rapid in the case of sodium CMC, olibanum wax, ethyl cellulose and HPMC (98%- 99%) and the release was achieved within 8 – 12 hours with these tablets. In contrast, calcium vigor caused the gliclazide release expected gradual and out of touch with reality over 24 hours.

Author(s) Details:

Sailaja Gunnam,
Gokaraju Rangaraju College of Pharmacy, Affiliated with Osmania University, Hyderabad – 500090, India.

Monika Nijhawan,
Gokaraju Rangaraju College of Pharmacy, Affiliated with Osmania University, Hyderabad – 500090, India.

Rajeswari Aleti,
Gokaraju Rangaraju College of Pharmacy, Affiliated with Osmania University, Hyderabad – 500090, India.

Please see the link here: https://stm.bookpi.org/NAPR-V6/article/view/11364

Development of Matrix Tablets by Extrusion/ Spheronization Process Using Laboratory Extruder | Chapter 13 | Novel Aspects on Pharmaceutical Research Vol. 2

 The basic goal concerning this study is to plan and evaluate model tablets (MTs) of Nicotinic acid by extrusion/Spheronization process utilizing extruder. Wherein, a detailed test of the influence of the process factors has more been intense. Extrusion is a process of converting natural resources into a product of uniform shape and mass by forcing it through a wither under controlled environments. Extruded MTs were initially created straightforwardly from the extruder rod wither and then repeated by compressing the extruded granules utilizing mixed polymers all along spheronization. These MTs were then distinguished to those made by compressing powders straightforwardly. These extruded MTs had a more protracted release pattern and were found to have superior material qualities, facial characteristics of drug solubility, and uniformity of drug content. As all formulations best fit into first order release action and Higuchi's equation, the artificial drug release data supports the spread-controlled type of the release mechanism. The dossier were fitted into the Korsmeyer-Peppas model, that exposed uncommon transport kinetics, to reinforce the results of the diffusion system. The release rate result t20%, t50%, and t80%, of formulations tend to show related to market output (MP) release rate. According to the model independent pair-intelligent approach 1 and 2 analysis, the MP sketch and the dissolution characterization of formulations can be laid over something else. It was evident from the increased security analyses of the enhanced formulations GEM.2 and TEM.2 that very little of the medication content run-down. At the end of six months, the release pattern was essentially unchanged and could be respected as stable. Therefore, it maybe said that banishing/ Spheronization has higher potential as a process for building MTs.

Author(s) Details:

R. K. Mohamed Mutahar,
Department of Pharmaceutics, Global College of Pharmacy, Chilkur (V), Moinabad (M), RR Dist. Telangana-501504, India.

Nagaraja Sreeharsha,
Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al –Ahsa-31982, Kingdom of Saudi Arabia.

Aqsa Farheen,
Department of Pharmaceutics, Global College of Pharmacy, Chilkur (V), Moinabad (M), RR Dist. Telangana-501504, India.

Sanjay Kumar Gupta,
Department of Pharmaceutics, Global College of Pharmacy, Chilkur (V), Moinabad (M), RR Dist. Telangana-501504, India.

Azmath Fatima,
Department of Pharmaceutics, Global College of Pharmacy, Chilkur (V), Moinabad (M), RR Dist. Telangana-501504, India.

Please see the link here: https://stm.bookpi.org/NAPR-V2/article/view/10618

Studies on the Formulation of Sustained Release Zolpidem Tartrate Matrix Tablets through Optimization and Their Evaluation | Chapter 7 | Current Perspectives on Chemical Sciences Vol. 2

 The goal of the present study was to establish a method of sustained release of the hypnotic agent zolpidem, which is useful in the treatment of insomnia. The least complicated system for preserving the release of drug candidates is the Matrix tablet. Two HPMCK4 M and HPMCK15 M polymers were chosen to maintain the release for up to 12 hours. To optimise varied response variables, viz., release rate exponent (n), t50 percent, k, amount of drug released in 12 h and mean dissolution period, optimization techniques using factorial architecture for two factors at three levels (32) were selected. To measure the release kinetics, Zorel software was used.The programme for the design expert was used to create ANOVA for selected five Responses In addition, in vitro and in vivo experiments with newly developed sustained-release zolpidem tablets were conducted and compared to traditional marketed tablets (zoldem). In vivo rabbit investigations have shown a sustained release pharmacokinetic profile of zolpidem from matrix tablets formulated using HPMCK4 M and HPMCK15 M combinations. In conclusion , the results indicate that the sustained-release matrix tablets produced could provide a reasonably controlled release of zolpidem tartrate for up to almost 12 hours. The successful design, production and optimization of the formulation of zolpidem tartrate matrix tablets was conclusively achieved in the current study.

Author(s) Details

Dr. Masheer Ahmed Khan
School of Pharmacy, Devi Ahilya Vishwavidyalaya, Takshshila Campus, Khandwa Road, Indore, M.P., India.

Prof. S. C. Chaturvedi
School of Pharmacy, Devi Ahilya Vishwavidyalaya, Takshshila Campus, Khandwa Road, Indore, M.P., India.

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