scholarly journals The use of the SeDeM diagram expert system for the formulation of Captopril SR matrix tablets by direct compression

2014 ◽  
Vol 461 (1-2) ◽  
pp. 38-45 ◽  
Author(s):  
J. Saurí ◽  
D. Millán ◽  
J.M. Suñé-Negre ◽  
P. Pérez-Lozano ◽  
R. Sarrate ◽  
...  
1970 ◽  
Vol 2 (2) ◽  
pp. 76-80
Author(s):  
Tajnin Ahmed ◽  
Muhammad Shahidul Islam ◽  
Tasnuva Haque ◽  
Mohammad Abusyed

In the present study sustained release diclofenac sodium matrix tablets were prepared using Kollidon SR polymer. Hydroxypropyl methylcellulose (HPMC 15 cps) and poly ethylene glycol (PEG-600) polymers respectively were used in formulating tablets prepared by direct compression and wet granulation methods. The polymers were used to explore the release pattern of the drug into the dissolution media. The tablets were also prepared in various shapes (caplet oval, round oval and flat oval). A comparatively higher release rate of drug was obtained from the polymer HPMC 15 cps at 10% concentration for directly compressed matrix tablet than those containing 20% of HPMC after a definite period of time. In wet granulation process, 10% PEG-600 containing tablets showed a better release than those containing 20% PEG. The drug release was also found to be sustained in case of wet granulation method than that of the direct compression method. Again the caplet shaped tablets in case of direct compression method showed better release rate of drug than those of the round oval and flat oval shaped tablets. Thus the result of this study shows that the proper selection of the percentage of polymer and the suitable shape of tablet and proper manufacturing method can provide a greater opportunity in designing sustained release dosage forms. Key words: Matrix tablet; release pattern; direct compression; wet granulation; PEG 600; Kollidon SR.DOI: 10.3329/sjps.v2i2.5828Stamford Journal of Pharmaceutical Sciences Vol.2(2) 2009: 76-80


2021 ◽  
Vol 10 (5) ◽  
pp. 131-136
Author(s):  
Asim pasha ◽  
C N Somashekhar

The aim of the present work was to develop sustained release Lornoxicam matrix tablets with polymers like HPMC K15M, Ethyl cellulose, and Crospovidone as carriers in varying quantities. Direct compression was used to make matrix tablets. Various assessment parameters, such as hardness, friability, thickness, percent drug content, weight variation, and so on, were applied to the prepared formulations. In vitro dissolution studies were carried out for 24 hrs. The tablets were subjected to in-vitro drug release in (pH 1.2) for first 2 hrs. Then followed by (pH 6.8) phosphate buffer for next 22 hrs. And the results showed that among the six formulations FL3 showed good dissolution profile to control the drug release respectively. The drug and polymer compatibility were tested using FT-IR spectroscopy, which revealed that the drug was compatible with all polymers. It is also required to design an appropriate prolonged release formulation for Lornoxicam in order to maintain the drug's release. Hence by using the compatible polymers sustained release tablets were formulated and subjected for various types of evaluation parameters like friability, hardness, drug content and dissolution behaviour. Finally, the findings reveal that the prepared sustained release matrix tablets of lornoxicam have improved efficacy and patient compliance.


2016 ◽  
Vol 24 (1) ◽  
pp. 82-91 ◽  
Author(s):  
Kwabena Ofori-Kwakye ◽  
Kwadwo Amanor Mfoafo ◽  
Samuel Lugrie Kipo ◽  
Noble Kuntworbe ◽  
Mariam El Boakye-Gyasi

Author(s):  
Johnny Edward Aguilar ◽  
Encarna García Montoya ◽  
Pilar Pérez Lozano ◽  
Josep M. Suñe Negre ◽  
Montserrat Miñarro Carmona ◽  
...  

2019 ◽  
Vol 21 (1) ◽  
Author(s):  
Isaac Nofrerias ◽  
Anna Nardi ◽  
Marc Suñé-Pou ◽  
Josep M. Suñé-Negre ◽  
Encarna García-Montoya ◽  
...  

2021 ◽  
Vol 11 (5) ◽  
pp. 105-109
Author(s):  
Shivani Soni ◽  
Vivek Jain ◽  
Sunil Kumar Jain ◽  
Pushpendra Kumar Khangar

The primary benefit of a sustained release dosage form compared to a conventional dosage form, is the consistent drug plasma concentration and consequently uniform therapeutic effect. Matrix system are preferential because of their ease, patient compliance etc, than  traditional drug delivery which have several drawbacks like reiterated administration, variation in blood concentration level etc. The aim of the present research study was to develop and evaluate sustained release matrix tablets of furosemide using direct compression method using  natural  gummy  and  waxy  materials (Xanthan  gum, bees  wax)  and synthetic  polymers  (HPMC K4M). The matrix tablet formulations were prepared by using different drug: polymer ratios (1:1, 1:2 and 1:3). All formulations were assessed using micromeritics studies of powder blend and diverse physicochemical tests. All the physicochemical characters of the formulated tablets were within acceptable limits. The release pattern of the drug was viewed over a period of 12 hours and determined the amount of drug by the UV-Visible spectroscopic method. Dissolution data demonstrated that the formulated tablets with Xanthan gum and hydroxyl propyl methylcellulose (HPMC) provided sustained release of the drug up to 12 hrs. Therefore inexpensively it may be appropriate for the pharmaceutical industries to employ this kind of simple technologies for the expansion of advanced formulations. Hence, we conclude that the purpose of this study was to formulate a sustained release matrix tablet of furosemide using diverse polymers and their dissimilar proportions have been attained. Keywords: Furosemide, Direct compression, Natural, Synthetic polymers, Sustained release tablets.


2020 ◽  
Vol 12 ◽  
Author(s):  
Inderbir Singh ◽  
Ajay Kumar Thakur ◽  
Rajni Bala ◽  
Reecha Madan

Background: SeDeM (Sediment Delivery Model) expert system is a preformulation tool employed for evaluating direct compression suitability of various excipients. SeDeM is a 12 parameter and SeDeM-ODT (Sediment Delivery Model-Orodispersible tablets) is a 15 parameter derived diagram that can be used as a research tool for reducing the product development time. Best possible excipients for a specified pharmaceutical active ingredient could be screened for direct compression suitability. Objective: SeDeM expert system has been successfully used and implemented for characterizing galenic properties of pharmaceutical excipients, direct compression suitability of excipients, development of ODT formulations, development of sustained release formulations and development of tablets of taste masked drugs. Conclusion: In the present review paper development and applications of SeDeM and SeDeM-ODT systems have been discussed in detail.


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