polymers

ABSTRACTThe oral route is a strategy that has been in use for many years. Although it is the most popular and widely used method for giving drugs to people orally, various restrictions, such as drug absorption or drug targeting to a specific 1organ, might make it difficult to administer... To address these issues as well as to advance medication development security and effectiveness In-situ Nasal Delivery is a unique method for medication delivery system for delivering drugs. The medication used in nasal gels is given as a low viscosity solution. The nasal mucosa when in contact with the polymer’s conformation transforms to a gel-like state. It is appropriate to use the nasal gel formulation for medications whose oral administration is challenging. Various biodegradable polymers that are used for the formulation of in situ gels include gellan gum, alginic acid, xyloglucan, pectin, chitosan, poly(DLlactic acid), poly(DL-lactide-co-glycolide) and poly-caprolactone. Keywords: In situ gel, bioavailability , polymers, nasal drug delivery.

ABSTRACTPantoprazole is a proton pump inhibitor that decreases the amount of acid produced in the stomach mainly used to treat erosive esophagitis and other condition involving excess stomach acid such as Zollinger-Ellison syndrome. The objective of present study was to Formulate and Evaluate fast dissolving tablets of Pantoprazole sodium. In the preformulation study, IR Spectra of pure drug and with different polymers showed no interaction (no shift in peak). To enhance faster disintegration rate, super disintigrants such as croscarmallose sodium, Crospovidone and Sodium starch glycolate were tried. To evaluate their role in fast dispersion, they were used in different concentrations hence in the present study 9 formulations were prepared. The prepared tablets were subjected to various parameters like uniformity of weight, hardness, friability, drug content, water absorption ratio, wetting time, in vitro disintegration time and in vitro dissolution studies. The effect of different super disintigrants over the Drug release profile was investigated. In the study, all powder blends showed good flow ability (angle of repose below 30º), bulk density in the range between 0.33-0.37 g/cm3 tapped density in the range between 0.34 and 0.39 g/cm3, and the compressibility index was found to be between 5.83 and 9.98 %, which ensures the blend that may be suitable for direct compression in to tablets. In vitro disintegration time for all formulation batches i.e. F-1 to F-9 showed wide variation in the range between 8.78.64 to 19.35 seconds and % Drug dissolved at 30 seconds. The prepared tablets exhibited satisfactory physico-chemical characteristics. The prepared formulations containing superdisintegrants, Crospovidone Along with microcrystalline cellulose showed faster dispersion and dissolution profile as compared with other two superdisintegrants containing formulations. Moreover, the  study revealed Crospovidone showed satisfactory results than the superdisintegrants like c