scholarly journals Recent Formulation Advances and Therapeutic Usefulness of Orally Disintegrating Tablets (ODTs)

Pharmacy ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 186
Author(s):  
Maimoona Chinwala

This review highlights the recent formulation advances (different methods of preparation involving various novel approaches) that have been advancing the use of ODT as a popular dosage form. Furthermore, the important characteristics of ODTs that are required for patient compliance and appropriate therapeutic benefit are discussed. In addition to conventional ODTs, ODTs formulated for controlled release of pharmaceuticals and taste masking are also discussed.

2020 ◽  
pp. 25-32
Author(s):  
Mariya Anurova ◽  
Elena Bakhrushina ◽  
Anna Moiseyeva ◽  
Ivan Krasnyuk

Patient compliance of drug therapy is the key factor in achieving the pharmaceutical effect. Taste masking is particularly important in pediatrics and geriatrics because the unpleasant taste negatively affects drug uptake. Patient compliance can be improved through balanced organoleptic properties of medicines. It is particularly important to choose optimal correction method for medicines with high concentration of the active substance. Hopantenic acid has been chosen as a model drug due to its bitter taste. Taste masking technologies for creating a new dosage form with optimal organoleptic properties are proposed in the article. The objective is to achieve an experimentally justified choice of technological approach to masking bitter taste of a substance and to create a new dosage form on its basis. Materials and methods. Alternative technologies were considered to solve this problem: granulation, creation of complexes with ion-exchange resins, introduction of a gel composition and taste-masking using sweeteners. Organoleptic properties in dry compositions (pure substance of hopantenic acid, granulate and resinate based on it), and also after preparation of liquid dosage forms and incorporation them into gel, were evaluated by A. I. Tentsova method. Choice of sweetener and its concentration to achieve an optimally balanced taste took place at the final stage. Hopantenic acid was chosen as a model substance. Hopantenic acid is a nootropic drug stimulating cognitive functions, nervous system, enhancing intellectual functioning, decreasing nervous system activity, with anticonvulsant action. The main therapeutic indications are mental retardation, dementia, epilepsy. Results and discussion. The study has shown that optimal technology for masking unpleasant taste of hopantenic acid is its introduction into a gel composition, and a promising dosage form is an oral gel. Compri-Zucker G sweetener (Südzucker АG, Germany) in concentration of 5 % has been chosen to create pleasant taste due to its highest taste rating. Conclusion. It has been determined as a result of the study that oral gel with active drug concentration of 5 % and sweetener concentration of 5 % has optimal organoleptic properties. Thus, this combination of active and additional substances can be considered the most perspective for developing a new dosage form of a medicine.


Author(s):  
Sagar T. Malsane ◽  
Smita S. Aher ◽  
R. B. Saudagar

Oral route is presently the gold standard in the pharmaceutical industry where it is regarded as the safest, most economical and most convenient method of drug delivery resulting in highest patient compliance. Over the past three decades, orally disintegrating tablets (FDTs) have gained considerable attention due to patient compliance. Usually, elderly people experience difficulty in swallowing the conventional dosage forms like tablets, capsules, solutions and suspensions because of tremors of extremities and dysphagia. In some cases such as motion sickness, sudden episodes of allergic attack or coughing, and an unavailability of water, swallowing conventional tablets may be difficult. One such problem can be solved in the novel drug delivery system by formulating “Fast dissolving tablets” (FDTs) which disintegrates or dissolves rapidly without water within few seconds in the mouth due to the action of superdisintegrant or maximizing pore structure in the formulation. The review describes the various formulation aspects, superdisintegrants employed and technologies developed for FDTs, along with various excipients, evaluation tests, marketed formulation and drugs used in this research area.


Author(s):  
Dumpeti Janardhan ◽  
Joginapally Sreekanth ◽  
P.Theja Pavan Kumar ◽  
M.Vamshi Krishna

The purpose of this study was to evaluate the potential of polymers for masking the taste of bitter drugs when incorporated into orally disintegrating tablets. The tablets were produced by simple wet granulation technique with a model compound (baclofen) which is moderately bitter. The formulating procedure had two variables to obtain good taste masking with desirable characteristics. The optimal granulation process parameters were polymer selection and its concentration (w/w), suitable for pilot scale level. Dextrates, β- cyclodextrin, eudragit EPO and PVP K-30 were used in preparation of granules by using water and iso-propyl alcohol. Crospovidone was used intra and extra granularly as superdisintegrant.  Sodium bicarbonate and citric acid were used as effervescent for fast disintegration of tablets, which also optionally act as desensitizer of taste buds. Results from evaluation of tablets indicated a disintegration time (avg) of 30-35 sec and 100% drug release was achieved within 5 min. But taste masking was achieved by only with eudragit EPO. Results from an evaluation by a panel of six human volunteers demonstrated that the orally disintegrating tablets which are prepared by using polymer Eudragit EPO (5% and 7.5% w/w of tablet) and PVP (7.5% w/w of tablet) improved taste, significantly. On studying physical parameters, F9 formulation demonstrated acceptable level of hardness and friability with good taste masking and it was thus considered as an optimized formulation


2020 ◽  
Vol 14 (4) ◽  
pp. 351-359
Author(s):  
Shubham Shrestha ◽  
Sankha Bhattacharya

Drug delivery for a long time has been a major problem in the pharmaceutical field. The development of a new Nano-carrier system called nanosponge has shown the potential to solve the problem. Nanosponge has a porous structure and can entrap the drug in it. It can carry both hydrophilic and hydrophobic drugs. They also provide controlled release of the drugs and can also protect various substances from degradation. Nanosponge can increase the solubility of drugs and can also be formulated into an oral, topical and parenteral dosage form. The current review explores different preparation techniques, characterization parameters, as well as various applications of nanosponge. Various patents related to nanosponge drug delivery system have been discussed in this study.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 816
Author(s):  
Yuxuan Ge ◽  
Zhenhua Hu ◽  
Jili Chen ◽  
Yujie Qin ◽  
Fei Wu ◽  
...  

GLP-1 receptor agonists are a class of diabetes medicines offering self-regulating glycemic efficacy and may best be administrated in long-acting forms. Among GLP-1 receptor agonists, exenatide is the one requiring the least dose so that controlled-release poly(d, l-lactic-co-glycolic acid) (PLGA) microspheres may best achieve this purpose. Based on this consideration, the present study extended the injection interval of exenatide microspheres from one week of the current dosage form to four weeks by simply blending Mg(OH)2 powder within the matrix of PLGA microspheres. Mg(OH)2 served as the diffusion channel creator in the earlier stage of the controlled-release period and the decelerator of the self-catalyzed degradation of PLGA (by the formed lactic and glycolic acids) in the later stage due to its pH-responsive solubility. As a result, exenatide gradually diffused from the microspheres through Mg(OH)2-created diffusion channels before degradation of the PLGA matrix, followed by a mild release due to Mg(OH)2-buffered degradation of the polymer skeleton. In addition, an extruding–settling process comprising squeezing the PLGA solution through a porous glass membrane and sedimentation-aided solidification of the PLGA droplets was used to prepare the microspheres to ensure narrow size distribution and 95% encapsulation efficiency in an aqueous continuous phase. A pharmacokinetic study using rhesus monkey model confirmed the above formulation design by showing a steady blood concentration profile of exenatide with reduced CMAX and dosage form index. Mg·(OH)2


2018 ◽  
Vol 8 (5) ◽  
pp. 50-55 ◽  
Author(s):  
RD Rahane ◽  
Punit R. Rachh

The convenience of administration and improved patient compliance are important in the design of oral drug delivery system which remains the preferred route of drug delivery inspite of various disadvantages. Fast disintegrating tablets (FDTs) have received ever-increasing demand during the last decade, and the field has become a rapidly growing area in the pharmaceutical industry. The popularity and usefulness of the formulation resulted in development of several FDT technologies. These techniques render the disintegration of tablet rapidly and dissolve in mouth in five seconds without chewing and the need of water which is advantageous mainly for pediatrics, geriatrics and patients having difficulty in swallowing tablets and capsules. Formulation of a convenient dosage form for administration, by considering swallowing difficulty and poor patient compliance, leads to development of orally disintegrating tablets. Conventional preparation methods are spray drying, freeze drying, direct compression, Molding, and sublimation while new technologies have been developed for the production of orodispersible tablets. Keywords: Fast Dissolving Tablet, drug delivery system, fast disintegrating, fast melting.


Author(s):  
Koini Lim ◽  
Afreen Haider ◽  
Claire Adams ◽  
Alison Sleigh ◽  
David Savage

Lipodystrophies have been recognised since at least the 19th century and despite their rarity tended to attract considerable medical attention due to the severity and somewhat paradoxical nature of the associated metabolic disease which so closely mimics that of obesity. Within the last 20 years most of the monogenic subtypes have been characterized, facilitating family genetic screening and earlier disease detection, as well as providing important insights into adipocyte biology and the systemic consequences of impaired adipocyte function. Even more recently, compelling genetic studies have suggested that subtle partial lipodystrophy is likely to be a major factor in prevalent insulin resistant T2DM, justifying the longstanding interest in these disorders. This progress has also underpinned novel approaches to treatment which, in at least some patients, can be of considerable therapeutic benefit.


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