scholarly journals A COMPREHENSIVE REVIEW ON SUSTAINED RELEASE MATRIX TABLETS: A PROMISING DOSAGE FORM

Author(s):  
Agarwal Prakhar ◽  
Akhtar Semimul

Oral ingestion is most convenient and commonly employed route of drug delivery due to its ease of administration, least aseptic and flexibility in the design of dosage form. The objective of the study was to explore the necessity, advantages and various techniques of extended release matrix tablet to get a constant drug delivery rate and reproducible kinetics for advance delivery. Different types of extended release matrix tablet have been explained briefly along with the various formulation which mainly by wet granulation or direct compression method or by dispersion of solid particle within a porous matrix formed by using different polymers. Matrix controls the free rate of drug. Matrix tablets can be formulated by either direct compression or wet granulation method by using a variety of hydrophilic or hydrophobic polymers. The extended release matrix tablets can assure better patient compliance through reduction in total dose and dosage regimen, which can be great help to treat chronic diseases. This review highlights the types of matrices, mechanisms involved and evaluation studies.

Author(s):  
Bagmar Anjali ◽  
Tikariya Komal

Oral delivery of drugs is the most preferable route of drug delivery due to the ease of administration, patient compliance and flexibility in formulation, etc. Sustained release constitutes are the dosage form that provides medication over an extended time or denotes that the system is able to provide some actual therapeutic control whether this is of a temporal nature, spatial nature or both. The objective of the study was to explore the necessity, advantages and various techniques of extended release matrix tablet to get a constant drug delivery rate and reproducible kinetics for advance delivery. Matrix tablets are the type of controlled drug delivery systems, which release the drug in continuous manner by dissolution controlled as well as diffusion controlled mechanisms. To control the release of the drugs, which are having different solubility properties, the drug is dispersed in swellable hydrophilic substances, an insoluble matrix of rigid non swellable hydrophobic materials or plastic materials. Matrix tablets can be formulated by either direct compression or wet granulation method by using a variety of hydrophilic or hydrophobic polymers. The extended release matrix tablets can assure better patient compliance through reduction in total dose and dosage regimen, which can be great help to treat chronic diseases. This review highlights the types of matrices, mechanisms involved and evaluation studies.


2019 ◽  
Vol 9 (1) ◽  
pp. 183-189 ◽  
Author(s):  
Sonal Sahu ◽  
Rohit Dangi ◽  
Rohit Patidar ◽  
, Rukhsaar ◽  
Jagdish Rathi ◽  
...  

Oral route is one of the most popular routes of drug delivery due to its ease of administration, patient compliance, least sterility constraints and flexible design of dosage form. The aim of present investigation was to develop matrix tablets of atenolol using different polymers. Atenolol matrix tablets were prepared by direct compression and wet granulation method using different polymers. All the formulations were evaluated for weight variation, thickness, hardness, friability and dissolution. Tablets of atenolol were prepared utilizing natural polymer chitosan. The formulation F-2 contained chitosan which might have sustained the release since it is also known for its polymeric sustaining effect. The formulation F-2 gave 89.57±0.24% of the drug release in 12 hrs of study. Keywords: Atenolol, Sustained release Matrix tablets, Direct compression, Wet granulation method.


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 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.


Author(s):  
Sandeep Kumar ◽  
Vijay Sharma ◽  
D.S. Rathore

Oral route is the most convenient route of drug administration. So far so many oral dosage forms have been developed to improve the patient compliance. The drugs with less half life are eliminated from the body with in short period of time. Different types of extended release matrix tablet have been explained briefly along with the various formulation which mainly by wet granulation or direct compression method or by dispersion of solid particle within a porous matrix formed by using different polymers. This review highlights the types of matrices, mechanisms involved and evaluation studies.  Keywords: Controlled release, matrix tablet, Polymer, Diffusion


Author(s):  
Tulsi Bisht ◽  
Rishishwar Poonam

The aim of present work was to develop once daily sustained release matrix tablet of aceclofenac by wet granulation technique using natural gums i.e.: gum acacia, guar gum and Xanthan gum. In this present study matrix tablets were prepared using three different methods and a comparative study was done. Aceclofenac sodium being the newer derivative of diclofenac having short biological half life (4hrs.), so it requires more than one dose per day to maintain therapeutic dose. The prepared tablets were evaluated for various parameters like weight variation, hardness, swelling index, friability, percent drug release and various release profile like zero order, first order, Higuchi's, and Koshemeyrs-peppa. All the evaluation parameters met pharmacopoeial specifications and through dissolution studies it was matrix tablets prepared with method 2 shows heighest percent drug release and matrix tablet prepared by method 3 showed lowest percent drug release at the end of 8 hrs. (Shown in fig. 8, comparative release study of all three formulations). Matrix tablet of aceclofenac were successfully prepared and evaluated and it can be concluded that matrix tablet prepared with natural gums showed release rate for a prolonged time and can be of great importance for “once daily” tablet to reduce side effects and toxicity related with NSAIDs.  


Author(s):  
Sakthikumar T ◽  
Rajendran N N ◽  
Natarajan R

The present study was aimed to develop an extended release tablet of metoprolol Succinate for the treatment of hypertension.  Four extended release formulations F1-F4 were developed using varying proportions of hydroxylpropyl-methylcellulose K100M, sodium carboxy methyl cellulose and Eudragit L30 D55 by wet granulation. Five extended release formulations F5-F9 containing HPMC K100M and HPMC 5 cps in varying concentration were developed by direct compression. The physicochemical and in vitro release characteristics of all the formulations were investigated and compared. Two formulations, F7 and F8 have shown not more 25% drug release  in 1st h, 20%-40% drug release at 4th hour, 40%-60% drug release at 8th hour and not less than 80% at 20th hour and the release pattern conform with USP specification for 24 hours extended release formulation. It can be conclusively stated that optimum concentration of HPMC K100M (58%-65%) by direct compression method can yield an extended release of metoprolol succinate for 24 hours.


Author(s):  
Sarika Pundir ◽  
Ashutosh Badola

In the present study we have formulated (F1 to F6) matrix tablets of atenolol and indapamide for the management of hypertension. As in simultaneous estimation of these drugs it was found that a confined release can be formulated. In the formulation of SR matrix tablet by using different concentration of delayed release agent DCP and pregelatinized starch as disintegrant we prepared tablets by wet granulation method. For sustained release action HPMC polymers were used for film coating. Preformulation studies were performed prior to compression. The compressed SR matrix tablets were evaluated for weight variation, hardness, friability, drug content, disintegration time and in vitro drug release using USP dissolution apparatus type 2 (paddle). It was found that the optimized formulation showed 49.33%, 48.90%, 48.52%, 47.65%, 46.84% and 46.51% release for atenolol in 12 hours respectively. However, indapamide released 49.62%, 49.39%, 48.72%, 48.27%, 47.59% and 47.36% at the end of 12 hr. The IR spectrum study revealed that there is no disturbance in the principal peaks of pure drugs atenolol and indapamide. This confirms the integrity of pure drugs and no incompatibility of them with excipients. The stability studies were carried out for the optimized batch for one months and it showed satisfactory results. The kinetic studies of the formulations revealed that diffusion is the predominant mechanism of drug and release follows Zero-order, Super case II transport.


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.


2018 ◽  
Vol 8 (5-s) ◽  
pp. 235-239
Author(s):  
NILESH M MAHAJAN ◽  
Kalyanee Wanaskar ◽  
Yogesh Bhutada ◽  
Raju Thenge ◽  
Vaibhav Adhao

The aim of present study is to formulate and evaluate extended release matrix tablet of Nateglinide by direct compression method using different polymer like HPMC K4 and HPMC K15. Matrix tablet of nateglidine were prepared in combination with the polymer HPMC K4, HPMC K15, along with the excipients and the formulations were evaluated for tablet properties and in vitro drug release studies. Nateglinide matrix tablet prepared by using polymer such as HPMC K4 and HPMC K15,  it was found that HPMC K15 having higher viscosity as compare to HPMC K4 therefore different concentration of polymer were studied to extend the drug release up to 12 h. The tablets of Nateglinide prepared by direct compression had acceptable physical characteristics and satisfactory drug release. The study demonstrated that as far as the formulations were concerned, the selected polymers proved to have an acceptable flexibility in terms of in-vitro release profile. In present the study the percent drug release for optimize batch was found to 94.62%.  Hence it can be conclude that Nateglinide extended release matrix tablet can prepared by using HPMC. The swollen tablet also maintains its physical integrity during the drug release study Keywords: Tablet, in-vitro drug release, Nateglinide, HPMC


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