[PDF] Top 20 DEVELOPMENT AND EVALUATION OF A SUSTAINED RELEASE MICROENCAPSULES OF THEOPHYLLINE

... containing Theophylline : Ethyl cellulose in the ratio ...desired release profile (Figure 3) and was subjected to assay, taste evaluation, flow characteristics (Table 7) and scanning electron ... See full document

... novel sustained release matrix tablets of theophylline and to evaluate release properties and kinetic behaviour of these ...the release rate were investigated. Theophylline ... See full document

... drug release experiments were performed over 12 ...extended release capsules of theophyline were measured by using USP XXII apparatus I (rotating ... See full document

... drug release two best formulations F4 and F7 were selected as the best ...various evaluation parameters like physical appearance, hardness, friability and drug content, invitro drug ...the evaluation ... See full document

... Controlled release (CR) technology actively explored in the pharmaceutical industries for prolonged therapeutic action, reduced cost and commercial advantages ... See full document

... drug release profile, absorption, distribution and elimination for the benefit of improving product efficacy and safety, as well as patient covinenience and ...Drug release is from diffusion, degradation, ... See full document

... Weight variation of tablet was found within limit (460 ± 5%). Friability of bi-tablet tablet 0.1% was found less than 1% except in batch F1 & F2 due to less binder. Hardness was found 9.0-9.5, in batch F1 & F2 ... See full document

... In-vitro Release Studies: USP apparatus II was used for In-vitro release studies of dissolution ...immediate release layer were collected at the interval of 5, 10, 15, 20, 30, 45, 60 and 90 min and ... See full document

... controlled release matrix tablets of Lamivudine having different proportion of Guar gum (retardant polymer) and to study the effect of formulation factor such as polymer proportion on the in- vitro ...drug ... See full document

... a sustained- release ...in sustained-release delivery because of their flexibility to obtain a desirable drug release ...a sustained-release composition which releases ... See full document

... The basic goal of the therapy is to achieve steady state blood level for prolonged period of time. Now a days as very few drugs are coming out of research and development and already existing drugs are suffering ... See full document

... 900 ml of the prepared buffer was poured. The dissolution machine was then set up with paddles and the tablets directly placed in the dissolution vessel. The dissolution machine was then started and 10 ml of sample was ... See full document

... Zero-order release constitutes drug release from the dosage form that is independent of the amount of drug in the delivery system ...constant release rate). Sustained release systems ... See full document

... and evaluation of in situ gelling system of ...provide sustained release of drug based on polymeric carriers that undergo sol-to-gel transition upon change in ...provided sustained ... See full document

... controlled release tablet formulations are the most fashionable and straightforward to formulate on a commercial ...drug release profile, cost effectiveness, and broad regulatory ... See full document

... Drug Release [11&12] : To study the mechanism of drug release from the matrix tablets, the drug release data were fitted to various kinetic models like zero order, first order, higuchi’s and ... See full document

... formulate sustained release tablets of Carvedilol by solid dispersion technique for improving solubility of Carvedilol using Poloxamer 407 and PVP ...as sustained release polymer in different ... See full document

... Vitro Release Studies: Based on office of generic drugs recommendation ...for development purpose. The release rates of Ranolazine sustain release tablets were determined by using US FDA ... See full document

... All the formulations were prepared according to the composition showed in Table-1. Theophylline and polymer were triturated well and moistened with Isopropyl alcohol and water mixture in the ratio of 1:1 to form a ... See full document

... Drug-excipient compatibility studies: Assessment of possible incompatibilities between an active drug substance and different excipients forms an important part of the pre-formulation stage during the development ... See full document