scholarly journals Formulation Optimization and in Vitro Characterization of Orally Disintegrating Films Using a Factorial Design and Mathematical Modeling for Drug Release

2017 ◽  
Vol 65 (2) ◽  
pp. 166-177 ◽  
Author(s):  
Yeongbin Lee ◽  
Prakash Thapa ◽  
Seong Hoon Jeong ◽  
Mi Hee Woo ◽  
Du Hyung Choi
2020 ◽  
Vol 12 ◽  
Author(s):  
Sagar R. Pardeshi ◽  
Harshal A. Mistari ◽  
Rakhi S. Jain ◽  
Pankaj R. Pardeshi ◽  
Rahul L. Rajput ◽  
...  

Background: Moxifloxacin is a BCS class I drug used in the treatment of bacterial conjunctivitis and keratitis. Despite its high water solubility, it possesses limited bioavailability due to anatomical and physiological constraints associated with the eyes which required multiple administrations to achieve a therapeutic effect. Objective: In order to prolong drug release and to improve antibacterial efficacy for the treatment of bacterial keratitis and conjunctivitis, moxifloxacin loaded nanoemulsion was developed. Methods: The concentration of oil (oleic acid), surfactant (tween 80), and cosurfactant (propylene glycol) were optimized by employing a 3-level 2-factorial design of experiment for the development of nanoemulsion. The developed nanoemulsion was characterized by particle size distribution, viscosity, refractive index, pH, drug content and release, transmission electron microscopy (TEM), and antibacterial study. The compatibility of the drug with the excipients was accessed by Fourier transform infrared spectroscopy (FTIR). Result: The average globule size was found to be 198.20 nm. The TEM study reveals the globules were nearly spherical and are well distributed. In vitro drug release profile for nanoemulsion shown sustained drug release (60.12% at the end of 6 h) compared to drug solution, where complete drug released within 2 h. The antibacterial effectiveness of the drug-loaded nanoemulsion was improved against S. aureus compared with the marketed formulation. Conclusion: The formulated sustained release nanoemulsion could be a promising alternative to eye drop with improved patient compliance by minimizing dosing frequency with improved antibacterial activity.


2020 ◽  
Vol 10 (3) ◽  
pp. 237-249
Author(s):  
Shashank Soni ◽  
Veerma Ram ◽  
Anurag Verma

Introduction: Hydrodynamically balanced system (HBS) possesses prolonged and continuous delivery of the drug to the gastrointestinal tract which improves the rate and extent of medications that have a narrow absorption window. The objective of this work was to develop a Hydrodynamically Balanced System (HBS) of Metoprolol Succinate (MS) as a model drug for sustained stomach specific delivery. Materials and Methods: Experimental batches were designed according to 3(2) Taguchi factorial design. A total of 9 batches were prepared for batch size 100 capsules each. Formulations were prepared by physically blending MS with polymers followed by encapsulation into hard gelatin capsule shell of size 0. Polymers used were Low Molecular Weight Chitosan (LMWCH), Crushed Puffed Rice (CPR), and Hydroxypropyl Methylcellulose K15 M (HPMC K15M). Two factors used were buoyancy time (Y1) and time taken for 60% drug release (T60%; Y2). Results: The drug excipient interaction studies were performed by the thermal analysis method which depicts that no drug excipient interaction occurs. In vitro buoyancy studies and drug release studies revealed the efficacy of HBS to remain gastro retentive for a prolonged period and concurrently sustained the release of MS in highly acidic medium. All formulations followed zero-order kinetics. Conclusion: Developed HBS of MS with hydrogel-forming polymers could be an ideal delivery system for sustained stomach specific delivery and would be useful for the cardiac patients where the prolonged therapeutic action is required.


INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (01) ◽  
pp. 37-43
Author(s):  
Ashwin A. Patil ◽  
Ketan B. Patil ◽  
Laxmikant R. Zawar

Present work focused on thiolation for enhancing the mucoadhesive potential of Gum kondagogu (GK). Thiolation of GK was done by esterification process with 80 % thioglycolic acid in presence of 7N HCl. Thiolated Gum kondagogu (ThioGK) was determined to possess 1.59 ±0.04 mmol of thiol groups/g of the polymer by Ellman’s method. ThioGK was characterized by FTIR, NMR, DSC, XRD, and FE-SEM. The tablets were prepared by direct compression using 75 mg of ThioGK and GK. Tablets containing ThioGK (F1) and GK (F2) were subjected to evaluation of weight variation, hardness and friability and show enhanced disintegration time, swelling behavior, drug release and mucoadhesion. In vitro drug release of batch F1 exhibits complete release of drug in 24 hr with zero order release kinetics. Comparative mucoadhesive strength was studied using chicken ileum by texture analyzer and revealed higher mucoadhesion of tablet containing ThioGK. From the above study, ThioGK was suitability exploited as mucoadhesive sustained release matrix tablet.


2017 ◽  
Vol 16 (10) ◽  
pp. 2325-2330
Author(s):  
Qiong Jin ◽  
Wei Chen ◽  
Wan Wu

Purpose: To develop mucoadhesive tablets containing miconazole (MCZ) for the treatment of oropharyngeal candidiasis, using chitosan and hydroxypropyl methylcellulose (HPMC) as mucoadhesive polymers.Methods: Mucoadhesive tablets were formulated and optimized using a 23 factorial design and direct compression method. The independent variables were compression force and concentrations of chitosan and HPMC, while mucoadhesion time and in vitro drug release were dependent variables. Tablet characterization was carried out by evaluating hardness, thickness, tablet weight variation, content uniformity, friability and in vitro drug release at salivary pH (pH 6.8).Results: The tablets showed good mucoadhesion for an extended period (8 h), and their physical characteristics were within acceptable ranges. Drug release ranged from 60.5 % to 80.8 %.Conclusion: These results indicate that the mucoadhesive MCZ tablets formulated with chitosan and HPMC possess potential for the development of therapeutic preparations for management of oropharyngeal candidiasis.Keywords: Miconazole, Oropharyngeal candidiasis, Factorial design, Mucoadhesion, Chitosan, Drug release


INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (07) ◽  
pp. 52-57

The aim of this research was to develop mucoadhesive buccal patches of nicergoline by using Factorial Design of Experiment, in order to provide a sustained release of drug into the systemic circulation. A 33 factorial experimental design was employed for optimization and to study the effect of formulation variables on responses R1 (% swelling index), R2 (% drug content), R3 (mucoadhesion time) and R4 (mucoadhesion strength). In vitro drug release study was performed on the optimized formulations. All the prepared formulations had good mechanical strength, mucoadhesion strength, neutral surface pH and drug content up to 98.17%. In vitro drug release study revealed that F-5 formulation showed promising sustained drug release profile (98.21%) for over 8 h and could be a potential substitute for marketed conventional formulations. The developed formulation (F5) was found to be optimized with considerably good stability and extended drug release profile.


2012 ◽  
Vol 4 (2) ◽  
pp. 25-28
Author(s):  
Manoj M Nitalikar ◽  
Dinesh M Sakarkar

An attempt was made to prepare fast dissolving tablets of anti-inflammatory drug Nimesulide preparing by direct compression method. The superdisintegrants Cross-carmellose and Sodium starch glycolate were used in different concentrations. Twelve formulations using those superdisintegrants at different concentration levels were prepared to access their efficiency and critical concentration level. Different evaluation parameters for tablet were studied. Tablets containing Cross-carmellose showed superior organoleptic properties and excellent in-vitro drug release as compared to other formulations. It was observed that on increasing the concentration of Cross-carmellose, the rate of disintegration was increased whereas on increasing the concentration of Sodium starch glycolate the rate of disintegration was decreased. The percentage drug release was observed as 96.32% when the concentration of Cross-carmellose was increased, whereas the same was not observed on increasing the concentration of Sodium starch glycolate. DOI: http://dx.doi.org/10.3329/sjps.v4i2.10436 S. J. Pharm. Sci. 4(2) 2011: 25-28


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