FLOATING DRUG DELIVERY SYSTEM: A REVIEW

Author(s):  
Archana Tomar ◽  
Arpita Singh ◽  
Amresh Gupta ◽  
Satyawan Singh

The main motto of working on that article on floating drug delivery systems (FDDS) is to make a compiled report on the recent studies and research with special consideration on the principle mechanism of flotation to achieve gastric retention. The scientific and technological advancements were made in the last few years in the research and development of rate-controlled oral drug delivery systems by overcoming physiological difficulties, like short gastric residence times (GRT) and unpredictable gastric emptying times (GET). This review also epitomized the in-vitro procedure, in-vivo to assess the pursuance and implementation of floating systems, and applications of these systems. These methods are useful to various queries experienced during the development of a pharmaceutical dosage form.

INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (10) ◽  
pp. 5-12
Author(s):  
S. R. Pattan ◽  
◽  
N. P Wani ◽  
M. U Shelar ◽  
S. A. Nirmal ◽  
...  

In recent years there have been several scientific and technological advancements in the research and development of rate-controlled oral drug delivery systems by overcoming physiological adversities,such as short gastric residence time (GRT) and unpredictable gastric emptying time (GET). Several approaches are currently utilized in the prolongation of the GRT, including floating drug delivery systems (FDDS), also known as hydrodynamically balanced systems (HBS), swelling and expanding systems,polymeric bioadhesive systems, modified-shape systems, high-density systems and other delayed gastric emptying devices. In this review, the current technological developments of FDDS including patented delivery systems and marketed products, and their advantages and future potential for oral controlled drug delivery are discussed.


Pharmaceutics ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 416 ◽  
Author(s):  
Schneider ◽  
Koziolek ◽  
Weitschies

More than 50 years ago, the first concepts for gastroretentive drug delivery systems were developed. Despite extensive research in this field, there is no single formulation concept for which reliable gastroretention has been demonstrated under different prandial conditions. Thus, gastroretention remains the holy grail of oral drug delivery. One of the major reasons for the various setbacks in this field is the lack of predictive in vitro and in vivo test methods used during preclinical development. In most cases, human gastrointestinal physiology is not properly considered, which leads to the application of inappropriate in vitro and animal models. Moreover, conditions in the stomach are often not fully understood. Important aspects such as the kinetics of fluid volumes, gastric pH or mechanical stresses have to be considered in a realistic manner, otherwise, the gastroretentive potential as well as drug release of novel formulations cannot be assessed correctly in preclinical studies. This review, therefore, highlights the most important aspects of human gastrointestinal physiology and discusses their potential implications for the evaluation of gastroretentive drug delivery systems.


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

In recent years scientific and technological advancements have been made in the research and development of rate-controlled oral drug delivery systems by overcoming physiological adversities, such as short gastric residence times (GRT) and unpredictable gastric emptying times (GET). Several approaches are currently utilized in the prolongation of the GRT, including floating drug delivery systems (FDDS), also known as hydrodynamically balanced systems (HBS), swelling and expanding systems, polymeric bioadhesive systems, modified-shape systems, high-density systems, and other delayed gastric emptying devices. The different strategies used in the development of FDDS by constructing the effervescent and noneffervescent type of floating tablets basis of which is buoyancy mechanism. FDDS is a method to deliver the drugs that are active locally with a narrow absorption window in the upper gastrointestinal tract, unstable in the lower intestinal environment, and possess low solubility with higher pH values. The recent developments in floating drug delivery systems are containing the physiological and formulation variables impacting on gastric retention time, approaches to formulating of single-unit and multiple-unit floating systems, and their classification and formulation aspects are discussed in detail. This review also summarizes evaluation parameters and application of floating drug delivery systems. Keywords: Floating drug delivery systems (FDDS), Gastric residence time, Swelling index, Buoyancy.


Author(s):  
A.V.S. Hima Bindu ◽  
G. Bhavya ◽  
K. Padmalatha

In recent years scientific and technological advancements have been made in the research and development of rate-controlled oral drug delivery systems by overcoming physiological adversities, such as short gastric residence times (GRT) and unpredictable gastric emptying times (GET). Several approaches are currently utilized in the prolongation of the GRT, including floating drug delivery systems (FDDS), also known as hydrodynamically balanced systems (HBS), swelling and expanding systems, polymeric bioadhesive systems, modified-shape systems, high-density systems, and other delayed gastric emptying devices. The different strategies used in the development of FDDS by constructing the effervescent and noneffervescent type of floating tablets basis of which is buoyancy mechanism. FDDS is a method to deliver the drugs that are active locally with a narrow absorption window in the upper gastrointestinal tract, unstable in the lower intestinal environment, and possess low solubility with higher pH values. The recent developments in floating drug delivery systems are containing the physiological and formulation variables impacting on gastric retention time, approaches to formulating of single-unit and multiple-unit floating systems, and their classification and formulation aspects are discussed in detail. This review also summarizes evaluation parameters and application of floating drug delivery systems.


Pharmaceutics ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1194
Author(s):  
Aristote B. Buya ◽  
Ana Beloqui ◽  
Patrick B. Memvanga ◽  
Véronique Préat

Approximately one third of newly discovered drug molecules show insufficient water solubility and therefore low oral bio-availability. Self-nano-emulsifying drug-delivery systems (SNEDDSs) are one of the emerging strategies developed to tackle the issues associated with their oral delivery. SNEDDSs are composed of an oil phase, surfactant, and cosurfactant or cosolvent. SNEDDSs characteristics, their ability to dissolve a drug, and in vivo considerations are determinant factors in the choice of SNEDDSs excipients. A SNEDDS formulation can be optimized through phase diagram approach or statistical design of experiments. The characterization of SNEDDSs includes multiple orthogonal methods required to fully control SNEDDS manufacture, stability, and biological fate. Encapsulating a drug in SNEDDSs can lead to increased solubilization, stability in the gastro-intestinal tract, and absorption, resulting in enhanced bio-availability. The transformation of liquid SNEDDSs into solid dosage forms has been shown to increase the stability and patient compliance. Supersaturated, mucus-permeating, and targeted SNEDDSs can be developed to increase efficacy and patient compliance. Self-emulsification approach has been successful in oral drug delivery. The present review gives an insight of SNEDDSs for the oral administration of both lipophilic and hydrophilic compounds from the experimental bench to marketed products.


RSC Advances ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 5372-5380 ◽  
Author(s):  
Soledad Stagnoli ◽  
M. Alejandra Luna ◽  
Cristian C. Villa ◽  
Fabrisio Alustiza ◽  
Ana Niebylski ◽  
...  

We evaluatein vitroandin vivotoxicity and stability in an acidic environment of new vesicles formed by the catanionic surfactant AOT-BHD in order to investigate their potential application as an oral drug delivery system.


Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 516 ◽  
Author(s):  
Jingou Liang ◽  
Xinyu Peng ◽  
Xuedong Zhou ◽  
Jing Zou ◽  
Lei Cheng

The oral cavity is a unique complex ecosystem colonized with huge numbers of microorganism species. Oral cavities are closely associated with oral health and sequentially with systemic health. Many factors might cause the shift of composition of oral microbiota, thus leading to the dysbiosis of oral micro-environment and oral infectious diseases. Local therapies and dental hygiene procedures are the main kinds of treatment. Currently, oral drug delivery systems (DDS) have drawn great attention, and are considered as important adjuvant therapy for oral infectious diseases. DDS are devices that could transport and release the therapeutic drugs or bioactive agents to a certain site and a certain rate in vivo. They could significantly increase the therapeutic effect and reduce the side effect compared with traditional medicine. In the review, emerging recent applications of DDS in the treatment for oral infectious diseases have been summarized, including dental caries, periodontitis, peri-implantitis and oral candidiasis. Furthermore, oral stimuli-responsive DDS, also known as “smart” DDS, have been reported recently, which could react to oral environment and provide more accurate drug delivery or release. In this article, oral smart DDS have also been reviewed. The limits have been discussed, and the research potential demonstrates good prospects.


Author(s):  
Suraj B. Pund ◽  
Vishwas C. Bhagat ◽  
Madhuri T. Deshmukh ◽  
Deepak P. Kardile ◽  
Rajkumar V. Shete

The objective of writing this review on Floating Drug Delivery Systems (FDDS) was to accumulate new work with a special focus on the primary floatation mechanism for gastric retention. Drug delivery systems are those that instantly float on contact with gastric fluids and present promising approaches to improve the bioavailability of drugs with absorption windows in the stomach or upper small intestine, imbalanced in the intestinal or colonic environment, and exhibit low solubility at high pH standards. It is a novel drug delivery system that takes full advantage of effectiveness and compliance. Physical problems such as short gastric residence time and unpredictable gastric emptying time were overcome with the use of floating dosage forms that provide the possibility of local and systemic effects. The floating drug delivery system allows prolonged and continuous entry of the drug into the upper part of the gastric retention pathway and increases the bioavailability of the medication characterized by a narrow absorption window. This review provides detailed information on the pharmaceutical basis of its Introduction, Advantages, Disadvantages, Factors Affecting Gastric Emptying, and Criteria for Suitable Drug Products for Floating Gastric-Retention, Classification of Floating Multiparticulate Drug Delivery System, and Characterization of Floating Multiparticulate Drug Delivery System. These systems are beneficial for various difficulties encountered during the development of a pharmaceutical dosage form and the future potential of FDDS. This review article has attempted to announce to readers about the floating drug delivery system.


Sign in / Sign up

Export Citation Format

Share Document