scholarly journals Oleic Acid Based Emulgel for Topical Delivery of Ofloxacin

2019 ◽  
Vol 9 (4-A) ◽  
pp. 183-190
Author(s):  
A. Manaswitha ◽  
P. V. L. D. Sai Swetha ◽  
N.K.D. Devi ◽  
K. Naveen Babu ◽  
K. Ravi Shankar
Keyword(s):  
Oleic Acid ◽  
Drug Release ◽  
Ph Value ◽  
Liquid Paraffin ◽  
Tween 80 ◽  
Gelling Agent ◽  
Compatibility Study ◽  
Zero Order Kinetics ◽  
Carbopol 940

The objective of the present study is to formulate and evaluate ofloxacin emulgel. Emulgel formulations of ofloxacin were prepared using different concentrations of gelling agent’s Carbopol-940 and Xanthum gum. Tween-80 and span-80 were used as emulsifiers and propylene glycol as a humectant in the preparation of emulgel. The effect of the concentration of gelling agent on the drug release from the prepared emulgel was investigated. The compatibility study was conducted using Fourier-transform infrared (FTIR). The formulated emulgel was characterized by their physical appearance, pH determination, viscosity, spreadability, drug content, microbial test and in vitro diffusion study. FTIR indicated that the drug and excipients used in the study are compatible with each other. All the prepared formulations showed acceptable physical properties, homogeneity, consistency, spreadability, viscosity, and pH value. Drug release from all the formulations depended upon the concentration of the polymer used. As the concentration of Carbopol 940 increased the spreadability and drug release was found to be decreased. Emulgels formulated with oleic acid gave a much higher release rate of ofloxacin than emulgels formulated with liquid paraffin. The release of drug from all the emulgels prepared followed Zero-order kinetics. The linear Higuchi plots indicated that the drug release from all the emulgels prepared followed diffusion kinetics. Emulgel formulated with oleic acid exhibited greater flux when compared with those formulated with liquid paraffin. The formulations were found to be stable during stability testing. It can be concluded that Carbopol 940 and oleic acid are recommended for the formulation and preparation of Ofloxacin emulgels for topical drug delivery. Key words: Ofloxacin, Emulgel, Spreadibility, Zone of inhibition.

scholarly journals Formulation and in-vitro evaluation of Polyherbal Micro-emulgel containing Tinospora cordifolia and Curcumin for treatment of Arthritis

2016 ◽  
Vol 8 (05) ◽  
Author(s):  
Susheel Thakur ◽  
Nisha Thakur ◽  
Niladry Ghosh
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Ph Value ◽  
Release Kinetics ◽  
Liquid Paraffin ◽  
Tinospora Cordifolia ◽  
Gelling Agent ◽  
Diffusion Method ◽  
Sem Images

Arthritis is the condition which is associated with inflammation of a joint, pain, swelling, and stiffness. Drug delivery to the target site remains a challenge due to ineffective drug delivery system. An attempt has been made to formulate and evaluate micro-emulgel for the effective drug delivery in the treatment of Arthritis. Micro-emulgel was loaded with Curcumin and Tinospora cordifolia to enhance bioavailability of extracts which have been widely used in the treatment of arthritis. Micro-emulgel was prepared by emulsion-solvent diffusion method using carbopol 940P as a gelling agent. Micro-emulsion was formulated using Liquid paraffin oil as oil phase; Tween 80 and Span 20 as surfactant and co-surfactant respectively. FTIR studies proved the compatibility between drug, excipient and carbopol. The Prepared micro-emulgel was subjected to various parameters such as pH, rheological studies, spreadability, thermodynamic stability tests, drug content, electro conductivity, and invitro release studies. The pH of all formulations was found near to the skin pH value. Viscosity and spreadability of F1 optimized formulation was found to be 146.5×103 cPs and 2.24 g×cm. From the in vitro drug release study, it was revealed that sustained release of formulation last up to 18 hours. F1 formulation showed the highest drug release of Curcumin (92.37%) and Tinospora cordifolia (90.75%). SEM images showed the diameter of oil globules of Micro-emulgel were in range of 1.50 to 2.13µm. Drug release kinetics showed the zero order drug release from the optimized F1 formulation. From the stability studies, F1 formulations had an excellent physical stability.

scholarly journals Formulation and characterization of a novel pH-triggered in-situ gelling ocular system containing Gatifloxacin

1970 ◽  
Vol 1 (3) ◽  
pp. 43-49 ◽  
Author(s):  
Jovita Kanoujia ◽  
Kanchan Sonker ◽  
Manisha Pandey ◽  
Koshy M Kymonil ◽  
Shubhini A Saraf
Keyword(s):  
Drug Release ◽  
Research Work ◽  
Gelling Agent ◽  
In Vitro Drug Release ◽  
Drug Content ◽  
Carbopol 940 ◽  
In Situ Gelling ◽  
Gel Transition

The present research work deals with the formulation and evaluation of in-situ gelling system based on sol-to-gel transition for ophthalmic delivery of an antibacterial agent gatifloxacin, to overcome the problems of poor bioavailability and therapeutic response exhibited by conventional formulations based a sol-to-gel transition in the cul-de-sac upon instillation. Carbopol 940 was used as the gelling agent in combination with HPMC and HPMC K15M which acted as a viscosity enhancing agent. The prepared formulations were evaluated for pH, clarity, drug content, gelling capacity, bioadhesive strength and in-vitro drug release. In-vitro drug release data of optimized formulation (F12) was treated according to Zero, First, Korsmeyer Peppas and Higuchi kinetics to access the mechanism of drug release. The clarity, pH, viscosity and drug content of the developed formulations were found in range 6.0-6.8, 10-570cps, 82-98% respectively. The gel provided sustained drug release over an 8 hour period. The developed formulation can be used as an in-situ gelling vehicle to enhance ocular bioavailability and the reduction in the frequency of instillation thereby resulting in better patient compliance. Key Words: In-situ gelation; Gatifloxacin; Carbopol 940; HPMC K15M. DOI: http://dx.doi.org/10.3329/icpj.v1i3.9661 International Current Pharmaceutical Journal 2012, 1(3): 43-49

scholarly journals Formulation and Characterization of Felodipine as an Oral Nanoemulsions

2021 ◽  
Vol 30 (1) ◽  
pp. 209-217
Author(s):  
Sumaya B. Hamed ◽  
Shaimaa N. Abd Alhammid
Keyword(s):  
Particle Size ◽  
Oleic Acid ◽  
Zeta Potential ◽  
Water Solubility ◽  
Tween 80 ◽  
Aqueous Solubility ◽  
Compatibility Study ◽  
Drug Content ◽  
Drug Molecules

            Felodipine is a calcium-channel blocker with low aqueous solubility and bioavailability. Lipid dosage forms are attractive delivery systems for such hydrophobic drug molecules. Nanoemulsion (NE) is one of the popular methods that has been used to solve the dispersibility problems of many drugs. Felodipine was formulated as a NE utilizing oleic acid as an oil phase, tween 80 and tween 60 as surfactants and ethanol as a co-surfactant. Eight formulas were prepared, and different tests were performed to ensure the stability of the NEs, such as particle size, polydispersity index, zeta potential, dilution test, drug content, viscosity and in-vitro drug release. Results of characterization showed that felodipine nanoemulsion (F3) with (oleic acid 10%) ,(Smix 60% of tween80 :ethanol in a ratio of 3:1), (DDW 30%) was selected as the best formula, since it has a particle size of (17.01)nm, low PDI (0.392), zeta potential (-22.34mV), good dilution without drug precipitation , higher percent of drug content (99.098%) with  acceptable viscosity , and complete release of the drug after (45 min.) with significantly higher (P<0.05)   dissolution  rate in comparison with the pure drug powder. The selected formula (F3) subjected to further investigations as drug and excipient compatibility study by Fourier transform infrared spectroscopy (FTIR) The outcomes of the (FTIR) explain that the distinctive peaks for felodipine were not affected by other components and displayed the same functional group's band with very slight shifting. This indicates that there was no interaction between felodipine and other NE components. Therefore, these excipients were found to be compatible with felodipine. In conclusion, the NE was found to be an efficient method to enhance the dispersibility and permeatioins of drugs that have poor water solubility (lipophilic drugs).

scholarly journals Formulation development and evaluation of Luliconazole Topical Emulgel

2021 ◽  
pp. 79-87
Author(s):  
Naga sai divya K ◽  
T Malyadri ◽  
Ch.saibabu
Keyword(s):  
Drug Release ◽  
In Vitro Release ◽  
Formulation Development ◽  
Drug Release Profile ◽  
In Vitro Drug Release ◽  
Zero Order Kinetics ◽  
Diffusion Controlled ◽  
Carbopol 940 ◽  
Vitro Release

The purpose of the present study was to develop and optimize the emulgel system for Luliconazole using different types of gelling agents: HPMCK15M, Carbopol 940, and Xanthan Gum. The prepared emulgels were evaluated in terms of appearance, pH, spreadability, viscosity, drug content, and in-vitro drug release. In-vitro release study demonstrated diffusion-controlled release of Luliconazole from formulation up to 12 hours. The drug release profile exhibited zero-order kinetics. All the prepared emulgels showed acceptable physical properties concerning color, homogeneity, consistency, spreadability, and higher drug release. In the case of all evaluation parameters, carbopol based formulation showed better properties so, as a general conclusion, it was suggested that the Luliconazole emulgel formulation prepared with carbopol (F6) was the formula of choice.

scholarly journals Formulation and Evaluation of Fusidic Acid Emulgel

2020 ◽  
Vol 10 (3-s) ◽  
pp. 169-175
Author(s):  
Ankita Srivastava ◽  
Sharav Desai ◽  
Hitesh Jain ◽  
D.B. Meshram
Keyword(s):  
Antimicrobial Activity ◽  
Drug Release ◽  
Fusidic Acid ◽  
Liquid Paraffin ◽  
Skin Irritation ◽  
Control Release ◽  
Topical Delivery ◽  
Gelling Agent ◽  
Topical Formulation

Emulgel have emerged as one of the most interesting topical delivery system as it has dual control release system i.e gel and emulsion. Topical applications of drug offers many advantages for delivering drug directly to the site of action and deliver the drug for extended period of time at effected site. The major objective behind this formulation is to enhance topical delivery of hydrophobic drug (Fusidic acid) by formulating Fusidic acid emulgel by using carbopol 934 as gelling agent. In addition light liquid paraffin as oil, span 20 as emulsifier and propylene glycol as co-surfactant were selected for the preparation of emulgel. Fusidic acid is steroidal bacteriostatic agent produced from Fusidium coccineum fungus belongs to class of steroids but has no corticosteroids effect and which is useful for the treatment of number of infections. Fusidic acid binds to protein and ribosomes and inhibits bacterial protein synthesis. The prepared emulgel were evaluated for their physical appearance, pH determination, viscosity, spreadability, in-vitro drug release, antimicrobial activity, skin irritation study and stability. All the prepared emulgel showed acceptable physical properties. The best formulation E9 shows better drug release when compared to all formulation. Keywords: Emulgel, Carbopol 934, Topical formulation, Antimicrobial activity, optimization, Fusidic acid

scholarly journals DEVELOPMENT AND PHYSICAL CHARACTERIZATION OF A PERIODONTAL BIOADHESIVE GEL OF GATIFLOXACIN

2017 ◽  
Vol 9 (3) ◽  
pp. 31
Author(s):  
Hanan Jalal Kassab ◽  
Lena Murad Thomas ◽  
Saba Abdulhadi Jabir
Keyword(s):  
Drug Release ◽  
Ph Value ◽  
Hydrophilic Polymers ◽  
Drug Release Profile ◽  
In Vitro Drug Release ◽  
Drug Content ◽  
Carbopol 940 ◽  
Evaluation Parameters

Objective: The aim of this study was to develop a bioadhesive gel of gatifloxacin for the treatment of periodontal diseases.Methods: Periodontal gels of gatifloxacin were prepared using different hydrophilic polymers such as carbopol 940 (CP 940), carboxymethyl cellulose (CMC) and hydroxypropylmethyl cellulose (HPMC) in varied concentrations, either alone or as a combination. The prepared gels were evaluated for their physical appearance, pH, drug content, viscosity, bioadhesiveness and in vitro drug release profile. The influence of the type and the concentration of polymer on the drug release as well as on viscosity and mucoadhesiveness of prepared gels were investigated.Results: The prepared gels showed acceptable physical properties concerning color, homogeneity, consistency, spreadability, and pH value. Using different polymer types at different concentrations, as well as different polymer combinations, play a significant role in the variation of overall characteristics of formulations. Increasing the concentration of polymer increased the viscosity as well as mucoadhesion, and reduced drug release rate. Formulation F 11 (1 % CP 940 and 5 % CMC) was selected as the formula of choice based on the data of various evaluation parameters such as pH, drug content, viscosity, spreadability and bioadhesion as well as its ability to show a prolonged drug release pattern.Conclusion: The obtained results show that a bioadhesive periodontal gel of gatifloxacin can be prepared using hydrophilic polymers, and by using a combination of polymers the viscosity, mucoadhesiveness, spreadability and release behavior can be optimized.

scholarly journals Formulation and Evaluation of Transdermal Topical Gel of Ibuprofen

2020 ◽  
Vol 10 (2) ◽  
pp. 20-25
Author(s):  
Ankita Kashyap ◽  
Asha Das ◽  
Abdul Baquee Ahmed
Keyword(s):  
Drug Release ◽  
Drug Loading ◽  
Research Work ◽  
Physical Mixture ◽  
Compatibility Study ◽  
Topical Gel ◽  
Carbopol 940 ◽  
Egg Membrane ◽  
Gel Preparation

The present research work is based on the formulation and evaluation of topical gel of Ibuprofen where Carbopol 940 is used as the polymer. Gels were prepared by dispersing the polymers  in a mixture of water and glycerol with methyl paraben as the preservative and the varying amount of ibuprofen, being kept under magnetic stirring until the homogeneous dispersion was formed. The dispersion was then neutralized and made viscous by the addition of triethanolamine. The Carbopol gels of Ibuprofen were found to be homogenous with good drug loading. The pH of all the gel formulations was found within the neutral pH range which is compatible with skin. And the viscosity of the formulations was found to be feasible for topical drug delivery. The drug content of the three formulations was found in the range of 87.56% to 90.45% which shows efficient drug loading. Results of In vitro drug release study showed that F5 formulation has better diffusion of drug through egg membrane and hence further permeation studies were carried out through rat epidermis. The compatibility study showed that the major peaks in FTIR spectra of the pure drug were found to be intact in their physical mixture. Hence there is no interaction between drug and Carbopol in their physical mixture. Carbopol can be effectively used as the polymer for topical gel preparation. And F5 formulation containing 0.5 % w/w Carbopol 940 may be effectively used as topical transdermal delivery for Ibuprofen. Keywords: Ibuprofen, Transdermal Gel, Drug release, Compatibility study

scholarly journals Formulation development and characterization of eplerenone insitu oralgels

2021 ◽  
pp. 69-78
Author(s):  
M.Parthy ◽  
T.Malyadri ◽  
Ch.Saibabu
Keyword(s):  
Drug Release ◽  
Oral Dosage ◽  
Gelling Agent ◽  
In Vitro Dissolution ◽  
Compatibility Study ◽  
Gastric Retention ◽  
Formulation Development ◽  
Sustained Drug Release

Gastro retentive drug delivery systems have been widely used to prolong the retention of dosage forms in the stomach. Among the various approaches, the floating in-situ gelling formulation offers sustained drug release as well as prolonged gastric retention, along with the added advantage of the liquid oral dosage form. The present study was an attempt to formulate and evaluate floating in situ gel of Eplerenone by using various polymers like Xanthan gum, Carbopol, HPMC K100M, and Karaya gum which undergoes pH dependant sol-gel transition at gastric pH, thereby prolonging the retention of the system in the stomach. Sodium alginate a natural polymer was employed as a gelling agent where Gelation is triggered by the source of calcium ions in the form of calcium carbonate. Drug and polymers were subjected for compatibility study using FTIR studies, which revealed that there was no interaction between drugs and polymers. The evaluation was carried out for invitro parameters such as gelling nature, Total floating time, drug content, viscosity, & in vitro dissolution studies. Among all the formulations, the F12 formulation containing HPMC K100M was chosen as an optimized formulation that shows maximum drug release by the end of 12hrs and has excellent floating characteristics and gastric retention. From kinetic studies, the optimized formulation shows zero-order release with super case II transport mechanism.

scholarly journals Development and Characterization of Barbaloin Gel for the Safe and Effective Treatment of Psoriasis

2020 ◽  
Vol 10 (5) ◽  
pp. 188-197
Author(s):  
Navdeep Singh ◽  
Kamya Goyal ◽  
Shivi Sondhi ◽  
Shammy Jindal
Keyword(s):  
Drug Release ◽  
Release Kinetics ◽  
Aloe Vera ◽  
Gelling Agent ◽  
In Vitro Drug Release ◽  
Gelling Properties ◽  
Release Studies ◽  
Carbopol 940 ◽  
Release Study

Psoriasis is an inflammatory skin disease which cause inflammation to the skin and generally the symptoms includes white or red colour of irregular skin; the patches are developed and they are commonly itchy and scaly to the skin. Barbaloin is an herbal phytoconstituent which is obtained from the plant aloe vera leaf part. In the present study hydrogels formulation batches from F1 to F10 were prepared by using carbopol 934, Xanthan gum, carbopol 940, and carbopol 71G NF as a gelling agent. The prepared formulations from F1 to F10 were evaluated for their physical appearance, Grittiness, spreadability, Homogeneity, viscosity, pH, swelling index and microscopical evaluation. The changes in each evaluation parameter were examined at multiples concentration of each polymer. The effects of gelling agent in each formulation were observed and it will help us to justify the suitable range of polymer as a single or in combination with other gelling agent. From these studies it was found to be formulation F2, F4, F7 and F10 showing good gelling properties and further these four formulations are selected for In Vitro drug release studies. By In Vitro drug release kinetics study formulation F2 and F10 showed higher release as compared to F4 and F7. Furthermore, formulation F2 and F7 had good kinetic release study and showed non fickian drug release as the n value was between 0.8-0.9. Therefore, from the above release study parameters formulation F2 and F10 show the best optimized release characterstics as compare to the selected optimized formulations F4 and F7. Keywords: Psoriasis, Barbaloin, Hydrogel, Formulation and Evaluation.

scholarly journals Formulation and in vitro Evaluation of Piroxicam Emulgel

2018 ◽  
Vol 10 (4) ◽  
Author(s):  
Y Bindu Vani ◽  
C. Surya Prakash Reddy
Keyword(s):  
Drug Release ◽  
Xanthan Gum ◽  
Evaluation Studies ◽  
Tween 80 ◽  
Zero Order ◽  
In Vitro Drug Release ◽  
Zero Order Kinetics ◽  
Release Studies ◽  
Span 80

The present work is concerned with the formulation and evaluation of Piroxicam emulgel employing carbopol 934 and xanthan gum as polymers. The emulgel is prepared by combining the gel and emulsion. The gel in formulations were prepared by dispersing Carbopol 934 and xanthan gum separately in purified water with constant stirring at a moderate speed and then the pH was adjusted to 4 to 5.4 using Tri-ethanol amine (TEA). The oil phase in the emulsion consists of oleic acid and span-80. The aqueous phase in the emulsion was prepared using Tween-80, propylene glycol and distilled water. The prepared emulgel formulations were subjected to evaluation studies like Physical appearance, rheological studies, estimation of drug content and in-vitro drug release. The appearance of prepared emulgel was white. The pH of the emulgel was found to be 5.4. The in vitro drug release studies revealed that formulation F1 showed 85.20% and formulation F2 showed 79.23% of drug release at the end of 8 hrs. The drug release of F1 formulation follows zero order kinetics.

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