HPMC- A Marvel Polymer for Pharmaceutical Industry-Patent review

2021 ◽  
Vol 15 ◽  
Author(s):  
Kumar Guarve ◽  
Priyanka Kriplani
Keyword(s):  
Methyl Cellulose ◽  
Dosage Forms ◽  
Delivery Systems ◽  
Gelatinous Layer ◽  
Dispersing Agent ◽  
Patent Review ◽  
Film Forming ◽  
Cellulosic Polymer ◽  
Hydrophilic Gel ◽  
Polymer Erosion

: At the present time, designing of defined release dosage forms, either controlled, sustained, modified, are gaining much importance. For the development of such delivery systems, proper blend of polymers is required, so that drug release occurs by polymer erosion, swelling, diffusion/dissolution. HPMC (hydroxypropyl methyl cellulose) is the most commonly used cellulosic polymer available in various grades to develop such types of systems. Depending upon the molecular weight and viscosity chosen, it can be applied for emulsification, adhesion, bonding, thickening, suspension, film forming and gelation. It consists of polymeric units linked together, which retain water, thereby acting as an excellent hydrophilic gel-forming polymer. It generally hydrates on the outer surface to form a gelatinous layer. It swells, expands upon contact with water and releases the drug in a predetermined manner initially and then forms a viscous gel to control the release further. The objective of the present review is to overview the recent patents and articles of HPMC, its properties, grades and its use in various drug delivery systems and as a binder, dispersing agent, bioavailability enhancer and as capsule forming material have been identified and reviewed.

A Review on Film Forming Drug Delivery Systems

2021 ◽  
pp. 5579-5588
Author(s):  
Hayder Yahya Mansoor Al-Jarsha ◽  
Mowafaq M. Ghareeb ◽  
Ahmed A. Hussein
Keyword(s):  
Drug Delivery ◽  
Patient Compliance ◽  
Drug Delivery Systems ◽  
Skin Permeation ◽  
Dosage Forms ◽  
Delivery Systems ◽  
Mechanism Of Formation ◽  
Film Forming ◽  
Supersaturated State ◽  
Recent Advancement

Conventional dosage forms for topical and transdermal drug delivery have several disadvantages related mainly to its poor skin permeation and patient compliance. Many approaches have been developed to improve these dosage forms. Film forming drug delivery systems represents a recent advancement in this field. It provides improved patient compliance with enhanced skin permeation of drugs. In its simplest form, these consist of a polymeric solution, usually in a supersaturated state, in a suitable solvent. A plasticizer is usually added to improve the flexibility and enhance the tensile strength to the film. It is also possible to control and sustain the drug release from the films by controlling the polymeric content, concentration of plasticizer, or formulation with other additives. In this review, we are summarizing the mechanism of formation of these films as well as its types and possible applications. The main ingredients, properties, and evaluation of the various film forming delivery systems are also discussed.

Development of Innovative Orally Fast Disintegrating Film Dosage Forms: A Review

2012 ◽  
Vol 5 (2) ◽  
pp. 1666-1674 ◽  
Author(s):  
Bibhu Prasad Panda ◽  
N.S Dey ◽  
M.E.B. Rao
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
Dosage Form ◽  
Geriatric Patients ◽  
Dosage Forms ◽  
Delivery Systems ◽  
Design And Development ◽  
Innovative Drug ◽  
Potential Benefits ◽  
Pharmaceutical Industries

Over the past few decades, there has been an increased interest for innovative drug delivery systems to improve safety, efficacy and patient compliance, thereby increasing the product patent life cycle. The discovery and development of new chemical entities is not only an expensive but also time consuming affair. Hence the pharmaceutical industries are focusing on the design and development of innovative drug delivery systems for existing drugs. One such delivery system is the fast disintegrating oral film, which has gained popularity among pediatric and geriatric patients. This fast disintegrating film with many potential benefits of a fast disintegrating tablet but devoid of friability and risk of choking is more acceptable to pediatric and geriatric patients. Formulation of fast disintegrating film can be achieved by various techniques, but common methods of preparation include spraying and casting. These film forming techniques use hydrophilic film former in combination with suitable excipients, which allow the film to disintegrate or dissolve quickly in the mouth within a few seconds without the administration of water. In view of the advantages of the fast disintegrating films over the fast disintegrating tablets and other dosage forms, it has the potential for commercial exploitation. The oral film dosage form not only has certain advantages of other fast disintegrating systems but also satisfies the unmet needs of the market. The present review emphasizes on the potential benefits, design and development of robust, stable, and innovative orally fast- disintegrating films and their future scenarios on a global market as a pharmaceutical dosage form.  

Topical Lipid Based Drug Delivery Systems for Skin Diseases: A Review

2020 ◽  
Vol 15 (4) ◽  
pp. 283-298
Author(s):  
Suresh Kumar Sahu ◽  
Rakesh Raj ◽  
Pooja Mongia Raj ◽  
Ram Alpana
Keyword(s):  
Drug Delivery ◽  
Skin Diseases ◽  
Topical Therapy ◽  
Skin Layer ◽  
Dosage Forms ◽  
Delivery Systems ◽  
Systemic Side Effects ◽  
Transcutaneous Delivery ◽  
Topical Dosage ◽  
Topical Dosage Forms

Treatment of skin ailments through systemic administration is limited due to toxicity and patients discomfort. Hence, lower risk of systemic side effects from topical dosage forms like ointments, creams, emulsions and gels is more preferred for the treatment of skin disease. Application of lipid based carriers in drug delivery in topical formulations has recently become one of the major approaches to improve drug permeation, safety, and effectiveness. These delivery systems include liposomes, ethosomes, transfersomes, Nanoemulsions (NEs), Solid Lipid Nanoparticles (SLNs) Nanostructured Lipid Carriers (NLCs) and micelles. Most of the liposomes and SLNs based products are in the market while some are under investigation. Transcutaneous delivery of therapeutics to the skin layer by novel lipid based carriers has enhanced topical therapy for the treatment of skin ailments. This article covers an overview of the lipid-based carriers for topical uses to alleviate skin diseases.

Chitosan Nanoparticles: An Approbative System for the Delivery of Herbal Bioactives

2020 ◽  
Vol 10 ◽  
Author(s):  
Sapna Saini ◽  
Sanju Nanda ◽  
Anju Dhiman
Keyword(s):  
Drug Delivery ◽  
Drug Delivery Systems ◽  
State Of The Art ◽  
Chitosan Nanoparticles ◽  
Delivery Systems ◽  
Intrinsic Properties ◽  
Amino Groups ◽  
Suitable Candidate ◽  
Film Forming ◽  
Novel Drug

: Chitosan, a natural biodegradable polymer obtained from deacetylation of chitin, has been used as an approbative macromolecule for the development of various novel drug delivery systems. It is one of the most favorable biodegradable carriers for nanoparticulate drug delivery due to its intrinsic properties, such as biocompatibility, biodegradability, non-toxicity, availability of free reactive amino groups, and ease of chemical modification into different active derivatives. Furthermore, interesting physical properties (film-forming, gelling and thickening) make it a suitable candidate for formulations, such as films, microcapsules, beads, nanoparticles, nanofibres, nanogel and so on. Researchers have reported that chitosan nanoparticles act as a promising vehicle for herbal actives as they provide a superior alternative to traditional carriers and improve pharmaceutical efficiency. As no review of chitosan nanoparticles encapsulating herbal extracts and bioactives has been published till date, a maiden effort has been made to collate and review the use of chitosan nanoparticles for the entrapment of phytoconstituents to yield stable, efficient and safe drug delivery systems. Additionally, the paper presents a comprehensive account of the state-of the-art in fabricating herbal chitosan nanoparticles and their current pharmacological status. A list of patents on chitosan nanoparticles of herbal actives has also been included. This review is intended to serve as a didactic discourse for the formulation scientists endeavoring to develop advanced delivery systems for herbal actives.

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.  

Eudragit, a Nifty Polymer for Anticancer Preparations: A Patent Review

2021 ◽  
Vol 16 ◽  
Author(s):  
Priyanka Kriplani ◽  
Kumar Guarve
Keyword(s):  
Drug Delivery ◽  
Methacrylic Acid ◽  
Drug Delivery Systems ◽  
Pharmaceutical Formulations ◽  
Delivery Systems ◽  
Ionic Polymers ◽  
Site Specific ◽  
Patent Review ◽  
The Matrix ◽  
Prevention Of Cancer

Background: Polymers are the backbone of modern pharmaceutical formulations and drug delivery technologies. Polymers that may be natural, synthetic, or semisynthetic are used to control the release of drugs in a pre-programmed fashion. The drug delivery systems are mainly prepared to enhance the bioavailability, site-specific release, sustained release, controlled release, i.e., to modify the release of drug from dosage form may be a tablet, capsule, etc. Objective: The objective of the present study is to overview the recent patents concerning the application of eudragit in the prevention of cancer and other ailments. Eudragit polymers are polymethacrylates and may be anionic, cationic, or non-ionic polymers of methacrylic acid, dimethyl-aminoethyl methacrylates, and methacrylic acid esters in varying ratios. Eudragit is available in various grades with solubilities at different pH, thus helping the formulators design the preparation to have a well-defined release pattern. Method: In this review, patent applications of eudragit in various drug delivery systems employed to cure mainly cancer are covered. Results : Eudragit has proved its potential as a polymer to control the release of drugs as coating polymer and formation of the matrix in various delivery systems. It can increase the bioavailability of the drug by site-specific drug delivery and can reduce the side effects/toxicity associated with anticancer drugs. Conclusion: The potential of eudragit to carry the drug may unclutter novel ways for therapeutic intercessions in various tumors.

scholarly journals Systematic Studies on Surface Erosion of Photocrosslinked Polyanhydride Tablets and Data Correlation with Release Kinetic Models

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1105 ◽  
Author(s):  
Armin Geraili ◽  
Kibret Mequanint
Keyword(s):  
Drug Delivery ◽  
Mass Loss ◽  
Kinetic Models ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Release Kinetic ◽  
Surface Erosion ◽  
The Media ◽  
Polymer Erosion ◽  
Release Kinetic Models

Photocrosslinkable polyanhydrides that undergo surface erosion are suitable materials for controlled-release drug delivery systems. Investigating the impact of different parameters on their erosion behavior is essential before use in drug delivery systems. Although their synthesis is well-established, parameters that may substantially affect the erosion of thiol-ene polyanhydrides including temperature and pH of the media, the geometry of the polymers, and the media shaking rate (the convective force for the polymer erosion), have not yet been studied. This study explores the effects of different environmental and geometric parameters on mass loss (erosion) profiles of polyanhydrides synthesized by thiol-ene photopolymerization. A comparative study on several release kinetic models fitting is also described for a better understanding of the polymer erosion behavior. The results demonstrated that although the temperature was the only parameter that affected the induction period substantially, the mass-loss rate was influenced by the polymer composition, tablet geometry, temperature, pH, and mass transfer (shaking) rate. With regard to geometrical parameters, polymers with the same surface area to volume ratios showed similar mass loss trends despite their various volumes and surface areas. The mass loss of polyanhydride tablets with more complicated geometries than a simple slab was shown to be non-linear, and the kinetic model study indicated the dominant surface erosion mechanism. The results of this study allow for designing and manufacturing efficient delivery systems with a high-predictable drug release required in precision medicine using surface-erodible polyanhydrides.

Research on the Adhension of Water-Based Ink on UV Varnish

2013 ◽  
Vol 469 ◽  
pp. 26-29 ◽  
Author(s):  
Dan Dan Wang ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Surface Tension ◽  
Dispersing Agent ◽  
Film Forming ◽  
Water Based ◽  
Resin Film ◽  
Major Factors

In order to enhance the adhension of ink, base ink was prepared with proper pigment and grinding resin, as well as dispersing agent, then compounded it and film-forming resin. The paper has studied the major factors, including grinding resin, film-forming resin and additives, which influenced the adhension of water-based ink on UV varnish. The results indicated that the content and the variety of grinding resin had a certain influence on the adhension of water-based ink. Besides, since the structure of film-forming resin is different, it has a significant effect on the adhension of water-based ink with the change of the variety of resin. Whats more, additives, which could decrease the surface tension of ink effectively and made the ink intend to adhere on UV varnish easily, is also an important factor that influences the adhension of the water-based ink on UV varnish.

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