scholarly journals An updated review on pharmacosomes, a vesicular drug delivery system

2019 ◽  
Vol 9 (1-s) ◽  
pp. 393-402 ◽  
Author(s):  
Bommala Supraja ◽  
Saritha Mulangi
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Alternative Methods ◽  
Therapeutic Window ◽  
Lipid Molecule ◽  
Novel Drug

Novel drug delivery system mainly consents about achieving the targeted concentration to release the drug at targeted site by using carrier system, altering the structure and microenvironment around the drug. Especially drugs which are having narrow therapeutic window are difficult to formulate, with the advantage of novel drug delivery systems like particulate, polymeric carrier, macromolecular and cellular carriers. They are used to reduce complications as well as release the drug in a determined fusion at targeted site. In vesicular drug delivery system drug binds covalently to the lipid molecule by which the drug release is in a controlled manner and also drugs which are of hydrophilic or lipophilic nature can be delivered by using vesicular drug delivery systems. The release of drug from the vesicles depends on the physicochemical properties of both the drug and carrier. Vesicular drug delivery includes liposomes, niososmes, transferosomes, pharmacosomes, electrosomes, ethosomes etc. Of all these drug delivery systems pharmacosomes are having more advantages like no leakage or loss of drug, stability, high entrapment efficiency etc, pharmacosomes may be hexagonal aggregates , ultrafine vesicular and micellar forms. Both synthetic and natural drugs which are facing difficulties like low solubility and low permeability can be effectively formulated and can achieve required pharmacokinetic and pharmacodynamic parameters. Pharmacosomes are prepared by hand shaking method, ether injection, solvent evaporation method, anhydrous co-solvent lyophilyzation, supercritical fluid approach and other alternative methods they are characterized by complex determination, surface morphology, drug entrapment, solubility, drug lipid compatibility, crystal state measurement, dissolution studies and in vitro drug release rate. Keywords: Pharmacosomes, covalently, vesicular drug delivery system, hexagonal aggregates, micellar, ultrafine.

Short Review on Novel Dosage Form

2021 ◽  
pp. 301-303
Author(s):  
Tushar N. Sonawane ◽  
Pradip D. Dhangar ◽  
Sagar D Patil ◽  
Azam Z. Shaikh
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Drug Effects ◽  
Short Review ◽  
Delivery Systems ◽  
The Novel ◽  
Novel Drug Delivery System ◽  
Novel Drug

Novel Drug Delivery Systems are one of the widely use delivery system in the presence scenario. Novel drug delivery system is a novel approach to drug delivery that addresses the limitations of the traditional drug delivery systems. In the form of a Novel Drug Delivery System an existing drug molecule can get a new life. The novel drug delivery system is Increases bioavailability and it Can be used for long-term treatments of chronic illness, Sustained maintenance of plasma drug levels as well as it Decreased adverse drug effects in the total amount of drugs required thus reducing side effects it Improved patient compliance due to reduction in number and frequency of doses required. There is less damage sustained by normal tissue due to targeted drug delivery. In this paper our main focus to give the throughout knowledge of some newer (Novel drug delivery system) to understand the concept of the Novel dossage form.

scholarly journals A hydrogel based quasi-stationary test system for in vitro dexamethasone release studies for middle ear drug delivery systems

2021 ◽  
Vol 7 (2) ◽  
pp. 692-695
Author(s):  
Thomas Eickner ◽  
Michael Teske ◽  
Natalia Rekowska ◽  
Volkmar Senz ◽  
Klaus-Peter Schmitz ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Concentration ◽  
Drug Delivery Systems ◽  
Test System ◽  
Delivery Systems ◽  
In Vitro Drug Release

Abstract For the investigation of in vitro drug release, methods have been used in which samples of drug delivery systems are immersed in release medium. The medium is used to measure drug concentration via chromatography or photometry. These systems are suitable to investigate the drug release of different systems or to simulate tissue environments. When considering predominantly humid regions, e.g. for drug release into the cochlea through the round window membrane by a drug delivery system placed at that membrane, reproducible in vitro determination of drug release becomes particularly challenging. In this study the development of a system is reported that allows the investigation of the in vitro drug release simulating such conditions. The presented test system consists of an alginate hydrogel in glass vials simulating the biological membrane, which separates the drug delivery system from the medium filled compartment. Saline is used as release medium and injected under the hydrogel. The samples are placed on top of the hydrogel, which slightly contacts the medium surface. The drug concentration in the release medium was determined by HPLC measurements. This system allows for testing the release of dexamethasone without the samples being completely surrounded by medium. The hydrogel mediates the diffusion of the drug by ensuring the contact with the medium. Release was monitored for more than 23 days. The presented concept was successfully designed and manufactured. The system is inexpensive and can be duplicated easily. In this study, it was used to monitor the drug release of dexamethasone from PEGDA700 derived polymer. One challenge that remains to be considered is the low mechanical stability of the hydrogel, which results in a need for repeated manufacturing during the handling of the system.

scholarly journals Prospects and Challenges of the Drug Delivery Systems in Endometriosis Pain Management: Experimental and Theoretical Aspects

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Bogdan Florin Toma ◽  
Razvan Socolov ◽  
Ovidiu Popa ◽  
Demetra Socolov ◽  
Irina Nica ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Pain Management ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Sodium Salt ◽  
Drug Delivery Systems ◽  
Pain Treatment ◽  
Diclofenac Sodium ◽  
Delivery Systems

Endometriosis is considered a serious public health issue because of the large number of females affected by this illness. Chronic pain management in patients with endometriosis demands new strategies to increase the life quality of these patients. The development of drug delivery systems represents a new approach in pain treatment among endometriosis patients. Diclofenac sodium, one of the most utilized nonsteroidal anti-inflammatory drugs (NSAID), has its own limitations when being used in formulas such as oral, parental, or local applications. In this paper, a series of four drug release formulations based on chitosan, 2-hydroxy-5-nitrobenzaldehyde, and diclofenac sodium salt were prepared in view of the investigation of the drug release ability. The formulations were analyzed from a morphological and supramolecular point of view by scanning electron microscopy and polarized light microscopy. The in vitro drug release ability was investigated by mimicking a physiologic environment. A mathematical model, using the fractal paradigm of motion, is utilized to explain the behaviors of the drug delivery system presented in this paper. These results suggest a great potential of the proposed drug delivery system, based on chitosan and 2-hydroxy-5-nitrobenzaldehyde to improve the diclofenac sodium salt bioavailability, and it may represent a future treatment formula for endometriosis pain.

A Recent Update on Formulation and Development of Gastro-Retentive Drug Delivery Systems

2021 ◽  
Vol 14 (1) ◽  
pp. 5257-5270
Author(s):  
Abhishek Kumar ◽  
Meenakshi Bharkatiya
Keyword(s):  
Drug Delivery ◽  
Gastric Emptying ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Floating Drug Delivery ◽  
Novel Drug ◽  
Floating Drug Delivery Systems ◽  
Gastro Retentive

Oral route has been the most convenient and accepted  route of drug delivery. Owing to tremendous curative  benefits of the oral controlled release dosage forms are  being preferred as the interesting topic in pharmaceutical  field to achieved improved therapeutics advantages.  Gastro retentive drug delivery system is novel drug  delivery systems which has an upper hand owing to its  ability of prolonged retaining ability in the stomach and  thereby increase gastric residence time of drugs and also  improves bioavailability of drugs. Concept of novel drug  delivery system arose to overcome the certain aspect  related to physicochemical properties of drug molecule  and the related formulations. In this context, various  gastro retentive drug delivery systems have been used to  improve the therapeutic efficacy of drugs that have a  narrow absorption window, are unstable at alkaline pH,  are soluble in acidic conditions, and are active locally in  the stomach. Concept of novel drug delivery system  arose to overcome the certain aspect related to  physicochemical properties of drug molecule and the  related formulations. Various approaches are currently  used including gastro retentive floating drug delivery  systems, swelling and expanding system, polymeric bio  adhesive systems, modified shape systems, high density  system and other delayed gastric emptying devices.  Moreover, future perspectives on this technology are  discussed to minimize the gastric emptying rate in both  the fasted and fed states. The present review briefly  addresses the physiology of the gastric emptying  process with respect to floating drug delivery systems.  The purpose of this review is to bring together the recent  literature with respect to the method of preparation, and  various parameters affecting the performance and  characterization of floating microspheres. Attempt has  been made to summarize important factors controlling  gastro retentive drug delivery systems. Overall, this  review may inform and guide formulation scientists in  designing the gastro retentive drug delivery system.

scholarly journals An updated review on transdermal drug delivery systems

2015 ◽  
Vol 1 (6) ◽  
pp. 244 ◽  
Author(s):  
Audumbar Digambar Mali ◽  
Ritesh Bathe ◽  
Manojkumar Patil
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Transdermal Delivery ◽  
Transdermal Drug Delivery ◽  
Drug Delivery Systems ◽  
Delivery Systems ◽  
Transdermal Drug Delivery System ◽  
Transdermal Drug Delivery Systems ◽  
Novel Drug

Transdermal drug delivery systems (TDDS), also known as patches, are dosage forms designed to deliver a therapeutically effective amount of drug across a patients skin. In order to deliver therapeutic agents through the human skin for systemic effects, the comprehensive morphological, biophysical and physicochemical properties of the skin are to be considered. Transdermal delivery provides a leading edge over injectables and oral routes by increasing patient compliance and avoiding first pass metabolism respectively. Transdermal delivery not only provides controlled, constant administration of the drug, but also allows continuous input of drugs with short biological half-lives and eliminates pulsed entry into systemic circulation, which often causes undesirable side effects. The TDDS review articles provide valuable information regarding the transdermal drug delivery systems and its evaluation process details as a ready reference for the research scientist who is involved in TDDS. With the advancement in technology Pharma industries have trendified all its resources. Earlier we use convectional dosage form but now we use novel drug delivery system. One of greatest innovation of novel drug delivery is transdermal patch. The advantage of transdermal drug delivery system is that it is painless technique of administration of drugs.

scholarly journals IN VITRO IN VIVO STUDIES ON FLOATING MICROSPHERES FOR GASTRORETENTIVE DRUG DELIVERY SYSTEM: A REVIEW

2021 ◽  
pp. 13-26
Author(s):  
KRISHNA ◽  
ABHISHEK KUMAR ◽  
RAJAT SRIVASTAVA
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Practical Importance ◽  
Delivery Systems ◽  
Therapeutic Window ◽  
Oral Drug ◽  
Special Focus

The purpose of writing this review on gastroretentive drug delivery systems (GRDDS) was to compile the recent literature with a special focus on various gastroretentive approaches that have recently become leading methodologies in the field of site-specific orally administered controlled release drug delivery. One of the complex processes in the human body is gastric emptying, as it is highly variable, which makes the in vivo performance of the drug delivery systems uncertain. GRDDS has gained immense popularity in the field of oral drug delivery recently. It is a widely employed approach to retain the dosage form in the stomach for an extended period of time and release the drug slowly that can address many challenges associated with the conventional oral delivery system. Conventional drug delivery systems may not overcome the issues imposed by the gastrointestinal tract (GIT) such as incomplete release of drugs, decrease in dose effectiveness, and frequent dose requirement. To overcome this variability, a controlled drug delivery system with a prolonged gastric residence time of >12 h in the stomach can be of great practical importance for drugs with an absorption window in the upper small intestine. GRDFs enable prolonged and continuous release of the drug to the upper part of the GIT and thus significantly extend the duration of drug release and improve the bioavailability of drugs that have a narrow therapeutic window; by this way, they prolong dosing interval and increase compliance.

scholarly journals Transfersomes: a novel technique for transdermal drug delivery

2019 ◽  
Vol 9 (1) ◽  
pp. 279-285 ◽  
Author(s):  
Priyanka Chaurasiya ◽  
Eisha Ganju ◽  
Neeraj Upmanyu ◽  
Sudhir Kumar Ray ◽  
Prabhat Jain
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Entrapment Efficiency ◽  
Delivery Systems ◽  
Ionic Surfactant ◽  
Wide Range ◽  
Novel Drug

Novel drug delivery systems are now a days is creating a new interest in development of drug deliveries. Vesicular drug delivery system is also a part of these novel drug delivery systems. TDDS is the permeability of the skin, it is permeable to small molecules, lipophilic drug and highly impermeable to the macromolecules and hydrophilic drugs. Recent approaches have resulted in design of two vesicular carriers, ethosomes and ultra flexible lipid based elastic vesicles, transferosomes. Transferosomes have recently been introduced, which are capable of transdermal delivery of low as well as high molecular weight drugs. This offers several potential advantages over conventional routes like avoidance of first pass metabolism, predictable and extended duration of activity, minimizing undesirable side effects, utility of short half life drugs, improving physiological and pharmacological response and have been applied to increases the efficiency of the material transfer across the intact skin, by the use of penetration enhancers, iontophoresis, sonophoresis and use of colloidal carriers such as lipid vesicles (liposomes & proliposomes) and non-ionic surfactant vesicles (niosomes & proniosomes). It is suitable for controlled and targeted drug delivery and it can accommodate drug molecules with wide range of solubility. Due to its high deformability it gives better penetration of intact vesicles. They are biocompatible and biodegradable as they are made from natural phospholipids and have high entrapment efficiency. The preparation variables are depending upon the procedure involved for manufacturing of formulation and the preparation procedure was accordingly optimized and validated. Characterization of transferosomes can be done to know the vesicle size, morphology, drug content, entrapment efficiency, penetration ability, occlusion effect, surface charge, in vitro drug release, in vitro skin penetration etc., It increases stability of labile drugs and provides control release. Transferosomes thus differs from such more conventional vesicles primarily by its softer, more deformable, better adjustable artificial membrane. Keywords: Novel Drug Delivery System, Biocompatible, Characterization, Transferosomes.

scholarly journals CRYPTOSOMES: A REVOLUTIONARY BREAKTHROUGH IN NOVEL DRUG DELIVERY

2019 ◽  
Vol 11 (1) ◽  
pp. 7 ◽  
Author(s):  
Aiswarya M. U. ◽  
Keerthana Raju ◽  
Revathy B. Menon ◽  
Lakshmi V. S. ◽  
Sreeja C. Nair
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Phosphatidyl Ethanolamine ◽  
Delivery Systems ◽  
The Body ◽  
Solid Lipid ◽  
Conventional Drug ◽  
Novel Drug

The vesicular drug delivery systems are promising approaches to overthrown the problems of drugs having lesser bioavailability and rapid elimination from the body. The four type of lipid based drug delivery systems are: solid-lipid particulate system, emulsion based system, solid lipid tablet and vesicular system. Cryptosomes, a novel emerging vesicular drug delivery system which can overcome the disadvantages associated with conventional drug delivery systems like high stability, increased bioavailability, sustained release, decreased elimination of rapidly metabolizable drugs etc. The word Cryptosome was orginated from Greek word ‘’Crypto’’ means hidden and ‘’Soma’’ means body. It is formed from the mixture of phospholipids like distearoyl phosphatidyl ethanolamine-polyethylene glycol (DSPE-PEG) with distearoylphosphatidylcholine. These entire information regarding its origin and formation is explained in Dinesh Kumar et al. Vesicular systems symbolizes the use of vesicles in the different fields as carrier system or additives. This review disclose various vesicular drug delivery system and point out the advancement of cryptosome in the world of drug delivery.This review would help researchers involved in the field of vesicular drug delivery.

scholarly journals Development of Tinidazole Loaded Polymeric Nanoparticles Formulation and its Characterization

2021 ◽  
pp. 72-83
Author(s):  
K. Tirumala Devi ◽  
B. S. Venkateswarlu
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Targeted Drug Delivery ◽  
Drug Delivery Systems ◽  
Polymeric Nanoparticles ◽  
Delivery Systems ◽  
Targeted Drug

Introduction: The development of safe drug delivery systems for a therapeutic agent with less side effects and more bioavailability to the targeted site is very vital in drugs formulation. Tinidazole (TZ) is a drug used to treat giardiasis, amebiasis for colon infections and other infections also such as trichomoniasis, bacterial vaginosis. But the oral bioavailability for the current using drugs low. So, the current study was aimed to develop colon targeted drug delivery system for Tinidazole (TZ) with polymeric nanoparticles (NPs). Methodology: The nanoparticles formulations of TZ were prepared with modified ionic gelation method using chitosan and hydroxypropyl methylcellulose phthalate (HPMCP) are in different combinations by magnetic stirring method followed by temperature modulated solidification. The solvent evaporation method applied to coat TZ nanoparticles with Eudragit S100. The prepared TZ nanoparticle were studied to evaluate physiochemical properties, In-vitro drug release, mucopenetration and In-vivo mucoadhesive studies were carried out. Results: The results of study indicate, 1:1 ratio of chitosan and HPMCP formulation of nanoparticles provides better spatial interaction between them and TZ with spherical porous and the particles size was diverging between 202 - 236 nm. In vitro release of TZ followed Higuchi and first order equations better than zero order equation. The drug release results of nanoparticles formulations of TZ indicate that the NPs have potential as a drug delivery system compare to uncoated TZ and coated nanoparticles have comparatively less mucoadhesive detachment force. Conclusion: In conclusion, the study was an evidence to use nanoparticles in colon targeted drug delivery systems for better bioavailability of drugs at targeted site and the biodistribution properties of drugs using nanoparticle will be depend on their composition, particle size and their adhesive abilities.

scholarly journals Novel Drug Delivery Systems and its Future Prospects

2022 ◽  
Vol 24 (1) ◽  
pp. 48-60
Author(s):  
Avani K. Shewale ◽  
◽  
Akshay R. Yadav ◽  
Ashwini S. Jadhav ◽  
◽  
...  
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Delivery Systems ◽  
Drug Level ◽  
Delivery Systems ◽  
The Body ◽  
Conventional Drug ◽  
Novel Drug Delivery System ◽  
Novel Drug

Most common methods of delivery include the preferred topical (skin), transmucosal (nasal, buccal, sublingual, vaginal, ocular and rectal) and inhalation routes. The conventional dosage forms provide drug release immediately and it causes fluctuation of drug level in blood depending upon dosage form. Therefore to maintain the drug concentration within therapeutically effective range needs novel drug delivery system. In the past few decades, considerable attention has been focused on the development of novel drug delivery system (NDDS). The NDDS should ideally fulfill two prerequisites. Firstly, it should deliver the drug at a rate directed by the needs of the body, over the period of treatment. Secondly, it should channel the active entity to the site of action. In conventional drug delivery systems, there is little or no control over release of the drug and effective concentration at the target site can be achieved by irregular administration of grossly excessive doses. At present, no available drug delivery system behaves ideally, but sincere attempts have been made to achieve them through various novel approaches in drug delivery.

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