scholarly journals Formulation Development and Evaluation of In-Situ Nasal Gel of Lisinopril Dihydrate

2016 ◽  
Vol 5 (7) ◽  
pp. 277-283
Author(s):  
Ravindra B. Saudagar ◽  
Sonika B. Deore ◽  
Sheetal B. Gondkar
2021 ◽  
Vol 11 (6) ◽  
pp. 5-8
Author(s):  
Vipulata P. Galankar

The goal of this project was to design, develop, and in-vitro evaluation of an in-situ gelling system for nasal administration of Bambuterol hydrochloride. All of the batches were prepared using different concentration of pectin, given different doses of simulated nasal electrolyte solution (SNES) i.e., 0.1 ml to 2.0 ml. All batches and formulation batches with a composition of 0.8 percent low methoxyl pectin underwent an in vitro gelation testing. The pH of the formulation reduced as the pectin content increased due to the acidic nature of pectin. The drug concentration was greater than 95%, and the apparent viscosity of the sol and gel was measured using a Brookfield viscometer (Rotational Viscometer Model). When the concentration of gelling polymer was increased from 0.5 to 1.0 percent, the gel strength (SOL) increased from 0.6 to 1 sec. The gel strength (GEL) increased from 0.7 to 13 seconds as a result of gelation. In vitro drug release experiments showed that the resulting formulations could release the medication for up to 10 hours when Higuchi kinetics were applied to all of them. The gels were stable across the six-month test period, according to the accelerated stability studies. There was no drug-polymer interaction, according to DSC and XRD analyses. Based on these findings, in situ nasal gel could be a possible drug delivery strategy for bambuterol hydrochloride, allowing it to bypass first-pass metabolism and hence improve bioavailability.


2015 ◽  
Vol 3 (3) ◽  
pp. 203-218 ◽  
Author(s):  
Ankita U. Patel ◽  
Priyanka P. Shah ◽  
Pranav J. Shah ◽  
Shailesh Shah

Author(s):  
Kranti Singh ◽  
Surajpal Verma ◽  
Shyam Prasad ◽  
Indu Bala

Ciprofloxacin hydrochloride loaded Eudragit RS100 nanoparticles were prepared by using w/o/w emulsification (multiple emulsification) solvent evaporation followed by drying of nanoparticles at 50°C. The nanoparticles were further incorporated into the pH-triggered in situ gel forming system which was prepared using Carbopol 940 in combination with HPMC as viscosifying agent. The developed nanoparticles was evaluated for particle size, zeta potential value and loading efficiency; nanoparticle incorporated in situ gelling system was evaluated for pH, clarity, gelling strength, rheological studies, in-vitro release studies and ex-vivo precorneal permeation studies. The nanopaticle showed the mean particle size varying between 263.5nm - 325.9 nm with the mean zeta potential value of -5.91 mV to -8.13 mV and drug loading capacity varied individually between 72.50% to 98.70% w/w. The formulation was clear with no suspended particles, showed good gelling properties. The gelling was quick and remained for longer time period. The developed formulation was therapeutically efficacious, stable and non-irritant. It provided the sustained release of drug over a period of 8-10 hours.


PLoS ONE ◽  
2017 ◽  
Vol 12 (12) ◽  
pp. e0189478 ◽  
Author(s):  
Yingting Wang ◽  
Shulong Jiang ◽  
Hongli Wang ◽  
Haiyan Bie

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (02) ◽  
pp. 76-78
Author(s):  
A Shirodker ◽  
◽  
S. Bhangle ◽  
R. Gude

The present study involved formulation of an in situ gelling system of brimonidine tartrate and timolol maleate for the treatment of glaucoma. Carbopol® 980 NF, xanthum gum and hydroxypropyl methylcellulose K4 M were used as polymers. The prepared in situ gelling systems were evaluated for clarity, appearance, texture analysis, pH, viscosity, rheological properties, in vitro gelation, isotonicity, drug content uniformity, in vitro release studies, microbiological evaluation, ex vivo release studies and stability testing. The results of the attenuated total reflectance spectroscopy and differential scanning calorimetry studies confirmed that there is no incompatibility between the drugs and the excipients. The formulations exhibited pseudoplastic rheology and formulation 3 showed the highest release of both the drugs from the formulation. The stability studies showed that the formulation was stable over the given period of time. Thus, it is evident that the in situ gelling system is a promising drug delivery system for the treatment of glaucoma.


INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (09) ◽  
pp. 83-85
Author(s):  
A Ambavkar ◽  
◽  
N. Desai

The objective of the study was to develop and evaluate nanolipid carriers based in situ gel of Carbamazepine, for brain delivery through intranasal route. The non – invasive nasal route can provide rapid delivery of drugs directly to the central nervous system by bypassing the blood brain barrier. The nanolipid carriers of carbamazepine as in situ nasal gel can prolong the drug release for control of repetitive seizures and were prepared by Phase Inversion Temperature technique. The retention of the carriers in the nasal cavity was improved by using Poloxamer 407 as thermoresponsive and Carbopol 974P as mucoadhesive gelling polymers, respectively. The developed gel was evaluated for particle size, polydispersity index, zeta potential, morphology, entrapment efficiency, mucoadhesive and thermoresponsive behaviour, in vitro drug release, ex vivo permeation and nasociliotoxicity. The gel showed sustained release over prolonged periods and was found to be non-toxic to the sheep nasal mucosa.


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