scholarly journals ENHANCEMENT OF SOLUBILITY AND OPTIMIZATION OF ORALLY DISINTEGRATING FILMS OF ACYCLOVIR

Author(s):  
Bikash Pandey ◽  
Arshad Bashir Khan

Objective: The objective of this work was to prepare and optimize orally disintegrating films of acyclovir (ACV), which is a known antiviral agent. To enhance the solubility of ACV, solid dispersions of ACV were made.Methods: The films were prepared using a solvent casting technique. Full factorial design was utilized for the optimization of the effect of independent variables such as the amount of hydroxypropyl methylcellulose 5 cps, sodium starch glycolate, and propylene glycol on the disintegration time. Other evaluation tests such as drug release, drug content, thickness, and folding endurance of film were also conducted.Results: Compatibility studies by Fourier transform infrared showed that there was no significant interaction between the drug and excipients used. Disintegration time was found to be 43 s for the optimized batch. The in vitro release profile of formulation response disintegrating time in phosphate buffer pH 6.8 revealed that there was a significant increment in drug release of the optimized batch in comparison to the screening batches. Further, short-term accelerated stability studies carried out for 4 weeks for the optimized formulation which proved that the formulated films were stable at the accelerated conditions of temperature and humidity (40±2°C/75±5% RH).Conclusions: It was concluded that such ACV solid dispersion films could be beneficial in enhancement of dissolution and consequently the oral bioavailability of ACV.

Author(s):  
ANAGHA PRABHU ◽  
ASMITA ARONDEKAR Arondeka ◽  
PRASHANT BHIDE ◽  
SHWETA BORKAR

Objective: The objective of the present work was to formulate and evaluate a fast-dissolving oral film of lurasidone hydrochlorideused as an atypical antipsychotic for the treatment of schizophrenia capable of providing faster onset of action. Methods: The fastdissolving films of lurasidone hydrochloride were prepared by the solvent casting technique using different compositions and combinations of hydroxypropyl methylcellulose E-3, E-5, E-15, and K4M as fast-dissolving polymer bases. A set of seven formulations were prepared and evaluated for parameters like physical characterization, thickness, weight uniformity, mechanical characteristics (folding endurance,tensile strength), surface pH, in vitro disintegration time, drug content, and an in vitro drug release. Results: The prepared films exhibited uniform and a smooth surface with uniform weight, thicknessand 89-90% mg drug content. The formulation F7 Showed excellent elasticity and disintegration within seconds. Lurasidone hydrochloride was rapidly released in vitro from all formulations. The release was found to be rapid and maximum of 41.5% in Phosphate buffer pH 6.8 and 58.6% in 0.1 N hydrochloric acid over a period of 30 min. The further optimized formulation F7Adepicted a faster and maximum release of 78% as compared to the marketed tablet 74%. Conclusion: The developed formulation is a better alternative to tablets by its ability to produce good drug release.


Author(s):  
SHUBHAM BIYANI ◽  
SARANG MALGIRWAR ◽  
RAJESHWAR KSHIRSAGAR ◽  
SAGAR KOTHAWADE

Objective: The intension of the present study includes fabrication and optimization of mouth dissolving film loaded with Chlorothalidone by solvent evaporation techniques using two components and their three levels as multilevel Categoric design. Methods: Major problem associated with the development of film loaded with BCS class II drug is to increase its solubility. Here the Chlorothalidone solubility achieved by co-solvents, such as methanol. After dissolving the drug in co-solvent, this drug solution is poured into an aqueous dispersion of Hydroxypropyl Methylcellulose E5 (HPMC E5) and Polyethylene glycol 400 (PEG 400). The two independent variables selected are factor A (concentration of HPMC E5) and factor B (concentration of PEG 400) was selected on the basis of preliminary trials. The percentage drug release (R1), Disintegration time in sec (R2) and folding endurance (R3) were selected as dependent variables. Here HPMC E5 used as a film former, PEG 400 as plasticizer, mannitol as bulking agent, Sodium starch glycolate as a disintegrating agent, tween 80 as the surfactant, tartaric acid as saliva stimulating agent, sodium saccharin as a sweetener and orange flavour etc. These fabricated films were evaluated for physicochemical properties, disintegration time and In vitro drug release study. Results: The formulation F6 has more favorable responses as per multilevel categoric design is % drug release about 98.95 %, average disintegration time about 24.33 second and folding endurance is 117. Thus formulation F6 was preferred as an optimized formulation. Conclusion: The present formulation delivers medicament accurately with good therapeutic efficiency by oral administration, this mouth dissolving films having a rapid onset of action than conventional tablet formulations.


Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 778
Author(s):  
Emőke-Margit Rédai ◽  
Paula Antonoaea ◽  
Nicoleta Todoran ◽  
Robert Alexandru Vlad ◽  
Magdalena Bîrsan ◽  
...  

The most used pharmaceutical formulations for children are syrups, suppositories, soft chewable capsules, and mini-tablets. Administrating them might create an administration discomfort. This study aimed to develop and evaluate orodispersible films (ODFs) for pediatric patients in which the fluoxetine (FX) is formulated in the polymeric matrix. Six FX fast dissolving films (10 mg FX/ODF), FX1, FX2, FX3, FX4, FX5, and FX6, were prepared by solvent casting technique. In the composition of the ODFs, the concentration of the hydroxypropyl methylcellulose and the concentration of the propylene glycol were varied. Each formulation of fluoxetine ODF was evaluated by determining the tensile strength, folding endurance, disintegration, behavior in the controlled humidity and temperature conditions, and adhesiveness. All the obtained results were compared with the results obtained for six ODFs prepared without FX. The disintegration time of the FX ODFs was of maximum 88 s for FX2. Via the in vitro releasing study of the FX from the ODFs it was noticed that FX1 and FX2 allow a better release of the drug 99.98 ± 3.81% and 97.67 ± 3.85% being released within 15 min. From the obtained results it was also confirmed that FX ODFs were found to follow first-order release kinetic.


2018 ◽  
Vol 10 (5) ◽  
pp. 76
Author(s):  
Methaq Hamad Sabar ◽  
Iman Sabah Jaafar ◽  
Masar Basim Mohsin Mohamed

Objective: The aim of this study was to formulate ketoconazole (keto) as oral floating in situ gel to slow the release of keto in the stomach.Methods: Sodium alginate (Na alginate) was used as a primary polymer in the preparation of the in situ gel and was supported by the following polymers: guar gum (GG), hydroxypropyl methylcellulose (HPMC) K4M, K15M and carbapol 940 as viscosity enhancing agents. As a consequence, and to complete the gelation process of above formulations was by adding the calcium carbonate (CaCO3). The in situ gels were investigated by the following tests: floating lag time, floating duration, viscosity, drug content, in vitro gelling studies and in vitro release study.Results: The study showed that the faster release was obtained with F1 which contained Na alginate alone. Additionally, reduction in Na alginate concentration resulted in significant increase in drug release. It was also noted that the increase in GG (viscosity enhancing polymer) concentration resulted in non-significant decrease in percent drug release and the reduction in CaCO3 concentration led to significant increase in drug release. Moreover, the release of drug was also affected by grade of viscosity enhancing polymer, the faster release was observed with the formula which contained a polymer of low viscosity (HPMC K4M) and an opposite result was with the high viscosity polymer (HPMCK15M).Conclusion: This study showed the formulation of Na alginate with GG and CaCO3, led to gain floating in situ gel and a sustained release of keto. 


Author(s):  
Asfiya Fatima ◽  
Mamatha Tirunagari ◽  
Divya Theja Chilekampalli

The main objective of the present study was to prepare and evaluate the instant release oral thin films of Flunarizine, in order to enhance the bioavailability of the drug and to provide rapid onset of action thereby improving patient compliance. The instant release oral thin films of Flunarizine were prepared by solvent casting method using film forming polymer like Hydroxypropyl Methylcellulose E-15. The film was evaluated for various physicochemical parameters that include thickness, weight variation, folding endurance, tensile strength, drug content and in vitro drug release studies. No differences were observed in in vitro dissolution of drug from the formulated film F1-F9 as the film instantly gets wet by dissolution medium. The drug release for F5 formulations was about 98.1%. The accelerated stability studies for the optimized film formulations F5 were performed that indicates that the formulated instant release oral thin films were unaffected after initial and 3 months storage under accelerated conditions.


2019 ◽  
Vol 9 (2) ◽  
pp. 231-240
Author(s):  
Khosro Adibkia ◽  
Solmaz Ghajar ◽  
Karim Osouli-Bostanabad ◽  
Niloufar Balaei ◽  
Shahram Emami ◽  
...  

Purpose: In the current study, electrospraying was directed as a novel alternative approach to improve the physicochemical attributes of gliclazide (GLC), as a poorly water-soluble drug, by creating nanocrystalline/amorphous solid dispersions (ESSs). Methods: ESSs were formulated using Eudragit® RS100 and polyethylene glycol (PEG) 6000 as polymeric carriers at various drug: polymer ratios (i.e. 1:5 and 1:10) with different total solution concentrations of 10, 15, and 20% w/v. Morphological, physicochemical, and in-vitro release characteristics of the developed formulations were assessed. Furthermore, GLC dissolution behaviors from ESSs were fitted to various models in order to realize the drug release mechanism. Results: Field emission scanning electron microscopy analyses revealed that the size and morphology of the ESSs were affected by the drug: polymer ratios and solution concentrations. The polymer ratio augmentation led to increase in the particle size while the solution concentration enhancement yielded in a fiber establishment. Differential scanning calorimetry and powder X-ray diffraction investigations demonstrated that the ESSs were present in an amorphous state. Furthermore, the in vitro drug release studies depicted that the samples prepared employing PEG 6000 as carrier enhanced the dissolution rate and the model that appropriately fitted the release behavior of ESSs was Weibull model, where demonstrating a Fickian diffusion as the leading release mechanism. Fourier-transform infrared spectroscopy results showed a probability of complexation or hydrogen bonding, development between GLC and the polymers in the solid state. Conclusion: Hence the electrospraying system avails the both nanosizing and amorphization advantages, therefore, it can be efficiently applied to formulating of ESSs of BCS Class II drugs.


2003 ◽  
Vol 71 (4) ◽  
pp. 357-364
Author(s):  
Sevgi Gūngör ◽  
Mine Orlu ◽  
Yildiz Özsoy ◽  
Ahmet Araman

The objective of this study was to evaluate the performance of Sucro Ester 7 (sucrose distearate) as additive for preparing sustained release suppositories of tiaprofenic acid. Suppocire AIM (semi-synthetic glycerides) was used as suppository base and formulations were prepared containing different ratios of sugar ester: Suppocire AIM. Content uniformity, disintegration time and in vitro release characteristics of suppositories were investigated. Significant decrease in the extent of drug release was observed with the increase in the content of sugar ester, which was due to the longer disintegration time of suppositories.


Author(s):  
NEHA IMTIAZ ◽  
SUTAPA BISWAS MAJEE ◽  
GOPA ROY BISWAS

Objective: Oral disintegrating films consisting of hydrophilic polymer are designed to be quickly hydrated by saliva, adhere to the mucosa and disintegrate rapidly to release the drug. The aim of the present study was to prepare stable, flexible swellable rapid release oral films with hydroxypropyl methylcellulose E15 LV (HPMC) and polyvinyl alcohol (PVA) in different ratios. Guar gum was incorporated as the mucoadhesive agent. In order to achieve rapid disintegration of the film cross carmellose sodium (superdisintegrant) and surfactant like Tween 80 were added. The model drug used in the study was diclofenac sodium. Methods: Films were developed using HPMC E15 LV and PVA by solvent casting method and characterized for thickness, swelling index, disintegration time, folding endurance, drug content, and in vitro drug release pattern and kinetics. Results: The prepared swellable rapid release oral films were quite flexible and transparent with a smooth texture. The swelling index study confirmed that the films possessed the desired swelling property. Fastest disintegration was observed with the oral film containing HPMC: PVA in the ratio of 2:1, guar gum at 120 mg, 20% w/w crosscarmellose sodium and 4%w/w Tween 80. The swellable rapid release oral films were found to follow either Higuchi or Korsmeyer-Peppas model with drug release following either Fickian or non-Fickian diffusion. Maximum drug release of around 70% was observed from the above-mentioned film in 1hr in simulated salivary fluid. Conclusion: Therefore, swellable rapid release oral films with HPMC E15 LV: PVA, guar gum, croscarmellose sodium and Tween 80 demonstrated satisfactory swelling, rapid disintegration and improved drug release for oromucosal absorption.


Author(s):  
ABHIBRATA ROY ◽  
REEGAN AREES ◽  
MADHAVI BLR

Objective: Rupatadine fumarate (RF) is an anti-allergic drug indicated for the treatment of allergic rhinitis. It has low oral bioavailability due to its poor aqueous solubility and extensive hepatic first pass metabolism. In the present work, oral fast-dissolving films (OFDF) have been formulated and evaluated to facilitate dissolution in the oral cavity itself. Methods: Pullulan and HPMC (5, 15 cps) were employed as film formers and six formulations were tried. The physicochemical compatibility between drug and the polymers was studied by FTIR spectroscopy. RF-beta-cyclodextrin (BCD) inclusion complex was initially prepared and evaluated. The inclusion complex was incorporated into the film. OFDF were formulated and prepared by solvent casting method. The film size for one dose was 2 × 2 cm. The films were evaluated for various film parameters including disintegration time and drug release. Results: Preliminary film studies indicated % of film former solution to be between 3 and 5% for good appearance, mechanical strength, and quick disintegration. Solubility enhancement of RF is almost 40-fold from its BCD inclusion complex. Drug content in the films ranged between 83 and 90%. The pH ranged between 6 and 7 for all the formulations. All OFDF of RF disintegrated within one minute. With higher viscosity grade of HPMC, disintegration was comparatively slower and so was the drug release. Pullulan based films also showed desirable properties. F3 had disintegration time was 28 s and % drug release was 92% in 180 s. Conclusion: OFDF of RF could be formulated employing pullulan and HPMC low viscosity grades by solvent casting method. F3 containing HPMC E5 at 37% by weight of dry film showed desirable film properties. Stability studies indicated that there was no significant change in the films with respect to physicochemical properties and in vitro release.


Author(s):  
Chandra Sekhar Kolli ◽  
Ramesh Gannu ◽  
Vamshi Vishnu Yamsani ◽  
Kishan V ◽  
Madhsudan Rao Yamsani

The aim of this investigation was to develop and evaluate mucoadhesive buccal patches of prochlorperazine (PCPZ). Permeation of PCPZ was calculated in vitro using porcine buccal membrane. Buccal formulations were developed by solvent-casting technique using hydroxy propylmethyl cellulose (HPMC) as mucoadhesive polymer. The patches were evaluated for in vitro release, moisture absorption and mechanical properties. The optimized formulation, based on in vitro release and moisture absorption studies, was subjected for bioadhesion studies using porcine buccal membrane. In vitro flux of PCPZ was calculated to be 2.14 ± 0.01 µg. h–1.cm–2 and buccal absorption was also demonstrated in vivo in human volunteers.             In vitro drug release and moisture absorbed was governed by HPMC content. Increasing concentration of HPMC delayed the drug release. All formulations followed Zero order release kinetics whereas the release pattern was non-Fickian. The mechanical properties, tensile strength (10.28 ± 2.27 kg mm–2 for formulation P3) and elongation at break reveal that the formulations were found to be strong but not brittle. The peak detachment force and work of adhesion for formulation P3 were 0.68 ± 0.15 N and 0.14 ± 0.08 mJ, respectively. The results indicate that suitable bioadhesive buccal patches of PCPZ with desired permeability and suitable mechanical properties could be prepared


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