scholarly journals FORMULATION AND EVALUATION OF MODIFIED DISINTEGRATING SUSTAINED RELEASE TABLETS OF DICLOFENAC SODIUM

2021 ◽  
Vol 6 (4) ◽  
pp. 52-66
Author(s):  
Lukkad Harish R ◽  
Oswal Rajesh
Keyword(s):  
Drug Delivery ◽  
Sustained Release ◽  
Drug Concentration ◽  
Oral Drug Delivery ◽  
Diclofenac Sodium ◽  
Oral Drug ◽  
Total Drug ◽  
Sustained Release Tablets ◽  
Suitable Technique ◽  
Fast Disintegrating Tablets

Oral drug delivery is the largest and the oldest segment of the total drug delivery market. It is the fastest growing and most preferred route for drug administration. In oral drug delivery, the sustained release (SR) tablets maintains the desired drug concentration for prolong period of time, reduced 'see- saw' fluctuation, reduced total dose, improved efficiency in treatment. But many patients like paediatric, geriatric and also patients may have difficulty in swallowing (Dysphagia) find it difficult to swallow tablets and thus do not comply with prescription. This problem is overcome by formulating and developing modified disintegrating sustained release tablets. In this case, first microspheres of the drug are formulated by using any suitable technique. And then optimized microspheres formulation is further formulated in to the fast disintegrating tablets (FDT) by using superdisintegrants. So that after taking such a tablets, the tablet only disintegrates into the mouth then microspheres are separated and ingestion of such microspheres starts releasing drug for prolonged period of time. This concept fulfills both the advantages of sustained release and fast disintegrating tablets.

scholarly journals FORMULATION AND EVALUATION OF NIFEDIPINE SUSTAINED RELEASE TABLETS BY USING DIFFERENT POLYMERS

2019 ◽  
Vol 8 (5) ◽  
Author(s):  
Shraddha Pawan Pareek ◽  
Sunil Kumawat ◽  
Vijay Sharma ◽  
Devender Sharma ◽  
Devendra Singh Rathore
Keyword(s):  
Drug Delivery ◽  
Sustained Release ◽  
Oral Delivery ◽  
Oral Drug Delivery ◽  
Pharmaceutical Products ◽  
Matrix Tablets ◽  
Oral Drug ◽  
Release Formulation ◽  
Therapeutic Benefits ◽  
Sustained Release Tablets

Oral drug delivery has been known for many years because the most generally utilized route of administration among all the routes that are explored for the general delivery of medication via various pharmaceutical products of different dosage forms.  The reason that the oral route achieved such quality could also be partly attributed to its simple administration moreover because the ancient belief that by oral administration the drug is well absorbed because the food stuffs that area unit eaten daily. In fact the event of a pharmaceutical product for oral delivery, no matter its physical kind involves variable extents of optimization of dose kind characteristics at intervals the inherent constraints of GI physiology.  The rationale for development of a extended release formulation of a drug is to enhance its therapeutic benefits, minimizing its side effects while improving the management of the diseased condition. The aim of the present investigation is to formulate and evaluate matrix tablets of Nifedipine using a mixture of polymers in view to sustain the drug release, reduce frequency of administration and improved patient compliance. In this research paper all evaluation parameter and stability studies also well discussed in well manner. Keyword: Matrix Tablets, Coating, Novel Drug Delivery System, Sustained Release Tablets

scholarly journals FAST DISSOLVING DRUG DELIVERY SYSTEMS: FORMULATION, PREPARATION TECHNIQUES AND EVALUATION

2018 ◽  
Author(s):  
Satbir Singh ◽  
Tarun Virmani ◽  
Reshu Virmani ◽  
Geeta Mahlawat ◽  
Pankaj Kumar
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Oral Drug Delivery ◽  
Dosage Forms ◽  
Delivery Systems ◽  
Oral Dosage ◽  
Oral Drug ◽  
Self Medication ◽  
Onset Of Action ◽  
Fast Disintegrating Tablets

The Fast Dissolving Drug Delivery Systems sets a new benchmark was an expansion that came into existence in the early 1980’s and combat over the use of the different dosage form like tablets, suspension, syrups, capsules which are the other oral drug delivery systems. Fast Dissolving Drug Delivery System (FDTS)  has a major advantage over the conventional dosage forms since the drug gets rapidly disintegrated and dissolves in the saliva without the use of water .In spite of the downside lack of immediate onset of action; these oral dosage forms have valuable purposes such as self medication, increased patient compliance, ease of manufacturing and lack of pain. Hence Fast Disintegrating Tablets (FDTS) technology has been gaining importance now-a-days with wide variety of drugs serving many purposes. Fast Disintegrating Tablets (FDTS) has ever increased their demand in the last decade since they disintegrate in saliva in less than a minute that improved compliance in pediatrics and geriatric patients, who have difficulty in swallowing tablets or liquids. As fast dissolving tablet provide instantaneous disintegration after putting it on tongue, thereby rapid drug absorption and instantaneous bioavailability, whereas Fast dissolving oral films are used as practical alternative to FDTS. These films have a potential to deliver the drug systemically through intragastric, sublingual or buccal route of administration and also has been used for local action. In present review article different aspects of fast dissolving  tablets and films like method of preparations, latest technologies, evaluation parameters are discussed. This study will be useful for the researchers for their lab work.  

Gastro-retentive drug delivery system for treatment of Ulcer

2019 ◽  
Vol 3 (02) ◽  
pp. 203-210
Author(s):  
Mohd Vaseem Fateh ◽  
Vikas Kumar ◽  
Renu Chaudhary ◽  
Vivak Ujjwal
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Sustained Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Concentration ◽  
Oral Dosage ◽  
Oral Drug ◽  
Time Duration ◽  
Release Drug

Due to the comfort of administration, economical and extensibility in formulation, the most adopted route to the systemic circulation is the oral route regardless of the astounding elevation in the drug delivery. Oral drug delivery is the most comforting method of delivery due to its comforting method of delivery, due to its better solubility, accurate dosage and simpler production. Approximately 90% of the drugs are administered orally of which solid oral dosage form is the most chosen class of medicaments. Conventional dosage forms usually exhibit the serum drug concentration fluctuations and irregularities in drug concentration in the tissues with resultant toxicity, low bioavailability and thus low therapeutic effects. Accordingly, the concept of the oral sustained release drug delivery system has gained popularity in advancement. Sustained release drug deliveries have steady and consistent drug release over longer time duration. Here, if the drug release is consistent over the time duration, it is supposed to be controlled release system, however if the system doesn’t achieve the constant drug release but shows the drug release over the longer duration compared to the conventional system, it is prolonged release systems. These systems are hot in the recent trend as they offer huge designing and adaptability range during formulation

Formulation and Evaluation of Tramadol Hydrochloride Sustained Release Matrix Tablets

2018 ◽  
Vol 8 (3) ◽  
Author(s):  
B Sai Adithya ◽  
Gulshan Mohammad ◽  
Rama Rao Nadendla
Keyword(s):  
Drug Delivery ◽  
Sustained Release ◽  
Patient Compliance ◽  
Oral Drug Delivery ◽  
The Body ◽  
Matrix Tablets ◽  
Angle Of Repose ◽  
In Vitro Dissolution ◽  
Oral Drug ◽  
Tramadol Hydrochloride

The ultimate goal of any oral drug delivery system is the successful delivery of the drug, in which almost 90% of the drugs are administered to the body for the treatment of various disorders and diseases as it is regarded as the safest, most convenient and most economical method of drug delivery having the highest patient compliance. The aim of the present study is to formulate sustained release matrix tablets of a model drug (Tramadol hydrochloride) using HPMC 100 MCR, HPC and EC 7cps as rate retarding polymers, microcrystalline cellulose as bulking agent, magnesium stearate as lubricant and aerosil as glidant. Drug and polymer interactions were evaluated by using FTIR and DSC. The FTIR spectrum and DSC thermograms stated that drug and polymer are compatible to each other. Tablets were prepared by direct compression technique. The micromeritic properties of formulation mixtures of all the formulations were carried out and they were found to be as angle of repose (31.150- 40.100), bulk density (0.310g/ml-0.337g/ml), tapped density (0.355g/ml-0.59g/ml), Carr’s index (8.11%-15.3%), Hausner’s ratio (1.08-1.18) which are within the limits. The formulated tablets were physically acceptable and exhibited acceptable weight variation, friability. In vitro dissolution studies were carried out using USP type-II dissolution apparatus and of all the formulations F6 (containing HPMC and HPC in equal proportions) exhibited prolonged drug release for about 8 hrsas per the objective of the work. The percent drug content varied between 88% to 99%. It can be concluded from the study that the sustained release tablets can be better alternative over immediate release tablets by improving patient compliance and reducing frequency.

scholarly journals Oral Modified Release Multiple-Unit Particulate Systems: Compressed Pellets, Microparticles and Nanoparticles

Pharmaceutics ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 176 ◽  
Author(s):  
Nihad Al-Hashimi ◽  
Nazish Begg ◽  
Raid Alany ◽  
Hany Hassanin ◽  
Amr Elshaer
Keyword(s):  
Sustained Release ◽  
Oral Drug Delivery ◽  
Oral Drug ◽  
Modified Release ◽  
Sustained Release Tablets ◽  
Swallowing Difficulties ◽  
Multiple Unit ◽  
Promising Solution ◽  
Subsequent Loss ◽  
Particulate Systems

Oral modified-release multiparticulate dosage forms, which are also referred to as oral multiple-unit particulate systems, are becoming increasingly popular for oral drug delivery applications. The compaction of polymer-coated multiparticulates into tablets to produce a sustained-release dosage form is preferred over hard gelatin capsules. Moreover, multiparticulate tablets are a promising solution to chronic conditions, patients’ adherence, and swallowing difficulties if incorporated into orodispersible matrices. Nonetheless, the compaction of multiparticulates often damages the functional polymer coat, which results in a rapid release of the drug substance and the subsequent loss of sustained-release properties. This review brings to the forefront key formulation variables that are likely to influence the compaction of coated multiparticulates into sustained-release tablets. It focusses on the tabletting of coated drug-loaded pellets, microparticles, and nanoparticles with a designated section on each. Furthermore, it explores the various approaches that are used to evaluate the compaction behaviour of particulate systems.

Applications of Ion Exchange Resin in Oral Drug Delivery Systems

2017 ◽  
Vol 7 (03) ◽  
Author(s):  
Kathpalia Harsha ◽  
Das Sukanya
Keyword(s):  
Drug Delivery ◽  
Ion Exchange ◽  
Drug Delivery Systems ◽  
Oral Drug Delivery ◽  
Physical Stability ◽  
Delivery Systems ◽  
Oral Drug ◽  
Ion Exchange Resins ◽  
Exchange Resins ◽  
Oral Drug Delivery Systems

Ion Exchange Resins (IER) are insoluble polymers having styrene divinylbenzene copolymer backbone that contain acidic or basic functional groups and have the ability to exchange counter ions with the surrounding aqueous solutions. From the past many years they have been widely used for purification and softening of water and in chromatographic columns, however recently their use in pharmaceutical industry has gained considerable importance. Due to the physical stability and inert nature of the resins, they can be used as a versatile vehicle to design several modified release dosage forms The ionizable drug is complexed with the resin owing to the property of ion exchange. This resin complex dissociatesin vivo to release the drug. Based on the dissociation strength of the drug from the drug resin complex, various release patterns can be achieved. Many formulation glitches can be circumvented using ion exchange resins such as bitter taste and deliquescence. These resins also aid in enhancing disintegrationand stability of formulation. This review focuses on different types of ion exchange resins, their preparation methods, chemistry, properties, incompatibilities and their application in various oral drug delivery systems as well as highlighting their use as therapeutic agents.

Sign in / Sign up

Export Citation Format

Share Document