The aim of present study was to assess the anti-inflammatory activity of polyherbal formulation of leaves of Annona squamosa, Azadiracta indica and rhizome of Curcuma longa. The mature green leaves of Annona squamosa, Azadiracta indica and rhizome of Curcuma longa were collected and authenticated. Extractions of dried leaves and rhizome were carried out with ethanol in soxhlet apparatus. The polyherbal formulation showed the significant anti-inflammatory activity comparable to the standard drug Diclofenac sodium against carrageenan induced rat paw edema method. The polyherbal formulation reduced the inflammation induced by carrageenan by 44.60% and 62.43% on oral administration at 100 mg/ kg and 200 mg/kg respectively as compared to the control treated group.

In this study, controlled release matrix tablets containing cephelexin were prepared using HPMC15 cps and Eudragit L100 in different concentration by Direct compression method. Tablets were evaluated for physical properties, Hardness, friability, weight variation and In vitro dissolution study was carried on USP II apparetus (peddle type). The best formulations selected based on above parameters were subjected for Extend release study with use of different ratio of polymer as Eudragit and HPMC .The tablets with Eudragit were found to release drug for longer duration of time as compared to formulations containing HPMC. The drug release from the tablets was sufficiently sustained.

A new, simple, accurate, precise and reproducible UV spectrophotometric method is being developed for the simultaneous estimation of amlodipine besylate, olmesartan medoxomil and hydrochlorthiazide in tablet dosage form. The stock solutions were prepared in methanol. The max for amlodipine besylate, olmesartan medoxomil and hydrochlorthiazide were 238.5nm, 256.5nm and 271.5nm respectively. The amlodipine besylate, olmesartan medoxomil and hydrochlorthiazide obeyed Beer's law in concentration range of 5-25ug/ml, 6-30ug/ml and 5-25ug/ml respectively. Results of analysis of simultaneous equation method were analyzed and validated for various parameters according to ICH guidelines.

Every year many new drugs and newer drug combinations enter the pharmaceutical area. Analytical methods for these new and first timer drugs are mostly confined only to the manufacturing company. However, availability of multiple analytical methods for the same drug/drug combinations in their formulations is always advantageous. Moreover, development of such methods helps in training the analysts for skillfully handling the sophisticated analytical instruments and the way for research approach. The present work is also planned on similar lines. A simple, precise, rapid and accurate Reversed-Phase High Performance Liquid Chromatography method is developed for the simultaneous estimation of Amlodipine Besylate, Olmesartan Medoxomil and Hydrochlorthiazide in dosage forms. Chromatography is carried out isocratically at 25 C 0.5 C on Liquid chromatographic system from Young Lin 9100 comprising of hyperchrome C-18 column (4.6 x 250mm, 5 particle size), manual injector, YL 9110 quaternary pump and Photodiode array YL 9160 detector connected to software YL clarity. Parameters such as linearity, precision, accuracy, recovery and specificity are studied as reported in the ICH guidelines.